Jim Towns and David Ullman take a dangerous trip to Count Zaroff's Island to talk about this 1932 RKO thriller, which was made by much of the same creative team as KING KONG.

Joining Jim on this episode is first-time co-host Bill Fleck: classic horror writer and blogger, and author of the books "Chaney's Baby" and "Chaney's Audition".

Larry transforms and kills a young girl, leading the villagers of Vasaria to raise a mob to chase him down. Fleeing toward the ruins of the Frankenstein castle, Larry falls through the burned-out flooring and into the frozen cellars. Larry returns to human form, and discovers Frankenstein's monster trapped within ice; using a stone, Larry breaks the ice and pulls the creature free, hoping he can show him Frankenstein's notes. The monster is unable to locate the notes, so Larry poses as a potential buyer of the Frankenstein estate in order to lure out Baroness Elsa Frankenstein, Frankenstein's daughter. She refuses to assist Larry, but the pair are invited to the "Festival of the New Wine" by the Burgomeister. During the festival, Dr. Mannering arrives, having followed Larry across Europe. He urges Larry to commit himself to a mental institution before he has another spell, but Larry believes he will ultimately escape any institution. The monster crashes the festival and is attacked by the villagers. Larry guides the monster onto a cart and drives him to safety.

Elsa and Mannering agree to help the villagers kill Frankenstein's monster. The following morning, Elsa, Mannering, and Maleva meet with Larry and the monster at the ruins. Elsa shows Larry where Frankenstein's notes are hidden. Mannering studies the notes and learns how to transfer life energy. Larry asks that his life energy be transferred to the monster, believing the laboratory can be repaired for the task. Mannering agrees, but secretly he and Elsa plan to drain both Larry and the monster of life.

Mannering begins the procedure, but his curiosity to see the monster at full strength compels him to alter the process and fully revive the monster. Horrified, Elsa attempts to stop the machines, and as a result Larry's life is not fully transferred. The experiment coincides on the night of a full moon, and Larry transforms as the monster regains his strength; both escape their restraints. The monster begins to carry Elsa away, but the Wolf Man attacks him. Vazec, the innkeeper, suspecting Elsa, Mannering, and Maleva of conspiring with Larry and the monster, destroys the dam overlooking the Frankenstein estate with dynamite, hoping to drown all five of them. Elsa escapes from the castle with Mannering, but the Wolf Man and the monster, engaged in their fight, are both swept away in the flood.

Jeff heads to South America to perfect the formula. Graham has used this opportunity to release the drug and romance Jeff's attractive wife, Mary (Brenda Joyce). When Jeff hears that his son has died, he takes revenge.

One of Mirakle's victims, a prostitute, is found dead in a river and her body is taken to the police station. Pierre wants to examine the victim's blood but the morgue keeper forbids it. Pierre bribes the morgue keeper to draw some of the victim's blood and deliver it to him the next day. Pierre discovers a foreign substance in the blood of the prostitute and other murder victims. Mirakle visits Camille and asks her to visit Erik again; when she refuses, Mirakle sends Erik to kidnap her. Pierre, who is leaving his flat, hears Camille's screams; he tries to enter the room but it is locked. When Erik has retreated, the police arrive and arrest Pierre. Neither Camille nor her mother are found. A police prefect interviews three witnesses: Italian Alberto Montani, German Franz Odenheimer and a Danish man, all of whom state they heard Camille screaming and someone else talking in a foreign language. Camille's mother is found dead; her body is stuffed into a chimney and her hand is clutching ape fur, from which Pierre deduces Erik may be involved.

The police, along with Pierre, run to Mirakle's hideout, where Erik turns against Mirakle and strangles him. When the police arrive, Erik grabs Camille and the police chase him and shoot Janos, who tries to keep them at bay. The police corner Erik on the roof of a small dockside house. Erik confronts Pierre, who fatally shoots Erik, saving his fiancée from peril.

Hutter rides on a coach to a castle, where he is welcomed by Count Orlok. When Hutter is eating dinner and accidentally cuts his thumb, Orlok tries to suck the blood out, but his repulsed guest pulls his hand away. Hutter wakes up the morning after to find fresh punctures on his neck, which he attributes to mosquitoes. That night, Orlok signs the documents to purchase the house and notices a photo of Hutter's wife, Ellen, remarking that she has a "lovely neck." Reading a book about vampires that he took from the local inn, Hutter starts to suspect that Orlok is a vampire. He cowers in his room as midnight approaches, with no way to bar the door. The door opens by itself and Orlok enters, and Hutter hides under the bed covers and falls unconscious. Meanwhile, his wife awakens from her sleep, and in a trance walks onto her balcony's railing, which gets his friend Harding's attention. When the doctor arrives, she shouts Hutter's name, apparently able to see Orlok in his castle threatening her unconscious husband.

The next day, Hutter explores the castle, only to retreat back into his room after he finds the coffin in which Orlok is resting dormant in the crypt. Hours later, Orlok piles up coffins on a coach and climbs into the last one before the coach departs, and Hutter rushes home after learning this. The coffins are taken aboard a schooner, where all of the ship's sailors and captain die and Orlok takes control. When the ship arrives in Wisborg, Orlok leaves unobserved, carrying one of his coffins, and moves into the house he purchased.

Many deaths in the town follow after Orlok's arrival, which the town's doctors blame on an unspecified plague. Ellen reads the book Hutter found, which claims that a vampire can be defeated if a pure-hearted woman distracts the vampire with her beauty. She opens her window to invite Orlok in, but faints. Hutter revives her, and she sends him to fetch Professor Bulwer, a physician. After he leaves, Orlok enters and drinks her blood, but starts as the sun rises, causing Orlok to vanish in a puff of smoke by the sunlight. Ellen lives just long enough to be embraced by her grief-stricken husband.

The last scene shows Count Orlok's destroyed castle in the Carpathian Mountains, symbolizing the end of his bloody reign of terror.

Unfortunately business at the museum is failing due to people's attraction to the macabre (a nearby wax museum caters to that). Igor's partner Joe Worth proposes to burn the museum down for the insurance money of £10,000. Igor will not allow such a travesty, but Worth starts a fire anyway. Igor tries to stop him and he and Worth get into a fight. As they fight, wax masterworks melt around them. Worth knocks Igor unconscious, leaving the sculptor to die in the fire.

Twelve years later in New York City, Igor, who survived the fire, reemerges and opens a new wax museum. His hands and legs have been badly crippled in the fire and he must rely on assistants to create his new sculptures. Meanwhile, spunky reporter Florence Dempsey, on the verge of being fired for not bringing in any worthwhile news, is sent out by her impatient editor, Jim, to investigate the suicide of a model named Joan Gale. During this time, a hideous monster steals the body of Joan Gale from the morgue. When investigators find that her body has been stolen, they suspect murder. The finger initially points to George Winton, son of a powerful industrialist, but after visiting him in jail, Florence thinks differently.

Charlotte, visiting Ralph at the museum, is trapped there by Igor, who it is revealed can still walk. When Charlotte tries to get away, she pounds away at his face, breaking a wax mask that he has made of himself, to reveal that he had been horribly disfigured. He also shows her the dead body of Joe Worth, whom Darcy had been tracking down for some time. When she faints, he straps her onto a table, intending to douse her with molten wax and make her his lost Marie Antoinette sculpture. Florence leads the police to the museum just in time: for a man supposedly crippled by fire, Igor moves with surprising speed and agility, successfully fighting off the police, but is finally gunned down. He falls into the giant vat of molten wax which was intended for Charlotte. Charlotte is saved when Ralph pushes the table to which she is strapped away just before the wax is to pour onto her.

When Florence reports her story to her editor, Jim, he proposes to her. Having to choose between money (Winton) and happiness (Jim), she picks the latter.

Ten years later, Imhotep has assimilated into a mysterious Egyptian historian named Ardeth Bey. He calls upon Sir Joseph's son Frank (David Manners) and Professor Pearson (Leonard Mudie) and shows them where to dig to find the tomb of the princess Anck-su-namun. After locating the tomb, the archaeologists present its treasures to the Cairo Museum, and Ardeth Bey disappears.

Ardeth soon encounters Helen Grosvenor (Zita Johann), a half-Egyptian woman bearing a striking resemblance to the princess. He reveals to her that his horrific death was punishment for sacrilege: attempting to resurrect his forbidden lover, Princess Anck-su-namun. Believing her to be Anck-su-namun's reincarnation, he attempts to kill her, with the intention of mummifying her, resurrecting her, and finally making her his immortal bride. Helen is rescued when she remembers her ancestral past life and prays to the goddess Isis to come to her aid. The statue of Isis raises its arm and emits a flash that sets the Scroll of Thoth on fire. This breaks the spell that had given Imhotep his immortality, causing him to crumble to dust. At the urging of Dr. Muller, Frank calls Helen back to the world of the living while the Scroll of Thoth continues to burn.

Villagers gathered around the burning windmill cheer the apparent death of the Monster. Hans, the father of the girl the creature drowned in the previous film, wants to see the Monster's bones. He falls into a flooded pit underneath the mill, where the Monster—having survived the fire—strangles him. Hauling himself from the pit, the Monster casts Hans' wife to her death. He next encounters Minnie, who flees in terror.

The body of Henry Frankenstein, who is thought to have died at the windmill, is returned to his fiancée Elizabeth at his ancestral castle home. 

Henry visits the lab of his former mentor Doctor Septimus Pretorius, where Pretorius shows Henry several homunculi he has created. Pretorius wishes to work with Henry to create a mate for the Monster, with the proposed venture involving Pretorius growing an artificial brain while Henry gathers parts for the mate.

That night, following the sound of a violin playing "Ave Maria," the Monster encounters an old blind hermit who thanks God for sending him a friend. He teaches the monster words like "friend" and "good" and shares a meal with him. Two lost hunters stumble upon the cottage and recognize the Monster. He attacks them and accidentally burns down the cottage as the hunters lead the hermit away.

Henry and Elizabeth, now married, are visited by Pretorius. When Henry expresses his refusal to assist with Pretorius' plans, Pretorius calls in the Monster, who demands Henry's help. Henry again refuses, and Pretorius orders the Monster out, secretly signaling him to kidnap Elizabeth. Pretorius guarantees her safe return upon Henry's participation. Henry returns to his tower laboratory where, despite himself, he grows excited over his work. After being assured of Elizabeth's safety, Henry completes the Bride's body.

A storm rages as final preparations are made to bring the Bride to life. Her bandage-wrapped body is raised through the roof, where electricity is harnessed from lightning to animate her. Henry and Pretorius lower her and, after realizing their success in bringing her to life, remove her bandages and help her to stand.

The Monster comes down the steps after killing Karl on the rooftop and sees his mate. The excited Monster reaches out to her and asks: "Friend?" The Bride, screaming, rejects him. The dejected Monster observes: "She hate me! Like others." As Elizabeth races to Henry's side, the Monster rampages through the laboratory. When Pretorius warns that the Monster's actions are about to destroy them all, the Monster pauses and tells Henry and Elizabeth: "Go! You live! Go!" To Pretorius and the Bride, he says: "You stay. We belong dead." While Henry and Elizabeth flee, the Monster looks at the Bride, sheds a tear, and pulls a lever to trigger the laboratory and tower's destruction.

Villagers gathered around the burning windmill cheer the apparent death of the Monster. Hans, the father of the girl the creature drowned in the previous film, wants to see the Monster's bones. He falls into a flooded pit underneath the mill, where the Monster—having survived the fire—strangles him. Hauling himself from the pit, the Monster casts Hans' wife to her death. He next encounters Minnie, who flees in terror.

The body of Henry Frankenstein, who is thought to have died at the windmill, is returned to his fiancée Elizabeth at his ancestral castle home. 

Henry visits the lab of his former mentor Doctor Septimus Pretorius, where Pretorius shows Henry several homunculi he has created. Pretorius wishes to work with Henry to create a mate for the Monster, with the proposed venture involving Pretorius growing an artificial brain while Henry gathers parts for the mate.

That night, following the sound of a violin playing "Ave Maria," the Monster encounters an old blind hermit who thanks God for sending him a friend. He teaches the monster words like "friend" and "good" and shares a meal with him. Two lost hunters stumble upon the cottage and recognize the Monster. He attacks them and accidentally burns down the cottage as the hunters lead the hermit away.

Henry and Elizabeth, now married, are visited by Pretorius. When Henry expresses his refusal to assist with Pretorius' plans, Pretorius calls in the Monster, who demands Henry's help. Henry again refuses, and Pretorius orders the Monster out, secretly signaling him to kidnap Elizabeth. Pretorius guarantees her safe return upon Henry's participation. Henry returns to his tower laboratory where, despite himself, he grows excited over his work. After being assured of Elizabeth's safety, Henry completes the Bride's body.

A storm rages as final preparations are made to bring the Bride to life. Her bandage-wrapped body is raised through the roof, where electricity is harnessed from lightning to animate her. Henry and Pretorius lower her and, after realizing their success in bringing her to life, remove her bandages and help her to stand.

The Monster comes down the steps after killing Karl on the rooftop and sees his mate. The excited Monster reaches out to her and asks: "Friend?" The Bride, screaming, rejects him. The dejected Monster observes: "She hate me! Like others." As Elizabeth races to Henry's side, the Monster rampages through the laboratory. When Pretorius warns that the Monster's actions are about to destroy them all, the Monster pauses and tells Henry and Elizabeth: "Go! You live! Go!" To Pretorius and the Bride, he says: "You stay. We belong dead." While Henry and Elizabeth flee, the Monster looks at the Bride, sheds a tear, and pulls a lever to trigger the laboratory and tower's destruction.

 Despite walking into Stauffer's trap, Griffin manages to obtain the list of agents, and start a fire to cover his escape. Griffin takes the list of agents to Arnold Schmidt for transmission to England. Conrad Stauffer tries to hide the loss of the list from the prying Baron Ikito, who has been staying at the local Japanese Embassy. When Stauffer refuses to answer Ikito's questions, the two confess to each other that German and Japanese cooperation is not one of trust. Without revealing their plans to each other, both men start separate hunts for the Invisible Agent.Griffin steals into a German prison to obtain information from Karl Heiser about a planned German attack on New York City. Griffin returns with Heiser to Schmidt, who in the meantime has been arrested and tortured by Stauffer. 

Heiser escapes detection and attempts to save his life and career by phoning in Ikito's activities to Stauffer. Griffin and Sorensen are taken to the Japanese embassy, but manage to escape during the mayhem that ensues when Stauffer's men arrive. For their joint failure to safeguard the list of Axis agents, Ikito kills Stauffer and then performs seppuku, ritual suicide, as Heiser watches from the shadows. Assuming command, Heiser arrives too late to the local air base to stop Griffin and Sorenson from escaping. The couple acquires one of the bombers slated for the New York attack, and destroy other German planes on the ground as they fly to England. Stauffer's loyal men catch up with Karl Heiser and he is shot. Griffin succumbs to his injuries before he can radio ahead. England's air defense shoots down their craft, but not before Sorenson parachutes them to safety. Later, in a hospital, Griffin has recovered and is wearing facial cream so that he can be visible again. Sorenson appears with Griffin's American handler, who vouches for Sorenson that she has been an Allied double-agent all along. Sorenson is left alone with Griffin. Griffin reveals that he is actually visible under the facial cream, and they kiss. Sorenson happily accepts the challenge of discovering how Griffin regained his visibility.

Sometime earlier, Sovac's best friend, bookish college professor George Kingsley, is run down while crossing a street. In order to save his friend's life, Sovac implants part of another man's brain into the professor's. Unfortunately, the other man was a gangster who was involved in the accident and was apparently heading for the electric chair, according to the police. The professor recovers but at times behaves like the gangster. Sovac is horrified but also intrigued, because the gangster has hidden $500,000 somewhere in New York City. The doctor continues to treat his unwitting friend and persuades him to take a vacation in New York; Sovac hopes this will revive the gangster's memory so that Kingsley will lead him to the fortune which he hopes to spend on a laboratory. Unfortunately, for the doctor's plans, the professor's personality change becomes more extreme, including plotting revenge against other members of his former gang. When Kingsley (behaving as a gangster) attempts to murder the doctor's daughter, Sovac shoots him dead.

Returning to present, Sovac is executed.

Sir Karell's daughter Irena (Elizabeth Allan) is the Count's next target. Professor Zelen (Lionel Barrymore), an expert on vampires and the occult, arrives in order to prevent her death. After Irena is menaced by the vampires on several occasions, Zelen, Baron Otto, and Inspector Neumann descend into the ruined parts of the castle to hunt down the undead monsters and destroy them. When Zelen and Baron Otto find themselves alone, however, Zelen hypnotizes the Baron and asks him to relive the night of Sir Karell's murder. It is then revealed that the "vampires" are actually hired actors, and that the entire experience has been an elaborate charade concocted by Zelen in the hopes of tricking the real murderer—Baron Otto—into confessing to the crime. Acknowledging that the charade has failed to produce its intended results, Zelen, along with Irena and another actor who strongly resembles Sir Karell, compels the hypnotized Baron into re-enacting the murder, effectively proving his guilt. During the re-enactment, Baron Otto reveals his true motive: he wished to marry Irena, but her father would not allow it. He also reveals how he staged the murder to resemble a vampire attack.

With Baron Otto arrested, Irena explains the plot to her fiance, Fedor (Henry Wadsworth), who was not involved in the subterfuge and believed that the vampires were real. The film ends with the actors who played the vampires packing up their supplies, and "Count Mora" exclaiming, "This vampire business, it has given me a great idea for a new act! Luna, in the new act, I will be the vampire! Did you watch me? I gave all of me! I was greater than any REAL vampire!" which is met with general lack of enthusiasm by his fellow thespians.

Meanwhile, Tubby and Slim realize that they must capture the monster in order to be reinstated on the police force. Walking down a street at night, Tubby spots Hyde (whom Slim at first mistakes for a burglar) and the boys trail him into a music hall where Vicky is performing and Adams is visiting. A chase ensues, and Tubby manages to trap Hyde inside a cell in a wax museum. However, by the time Tubby brings the police inspector, Adams and Slim to the scene, the monster has reverted to the respected Dr. Jekyll, and Tubby is once again rebuked by the police inspector. The "good" doctor, however, asks Slim and Tubby to escort him to his home. Once at Jekyll's home, Tubby and Slim snoop around and Tubby drinks a potion which transforms him into a large mouse. Slim and Tubby bring this news to the inspector, but the inspector refuses to believe them.

Later, Vicky announces to Jekyll her intent to marry Adams, but Jekyll does not share her enthusiasm and transforms into Hyde right in front of her and attacks her. Adams, Slim and Tubby save her in the nick of time, but Hyde escapes. During the struggle, Jekyll's serum needle falls into a couch cushion, which Tubby accidentally falls onto, transforming him into a Hyde-like monster. Another madcap chase ensues, this time with Adams chasing Jekyll's monster and Slim pursuing Tubby's monster, since both believe they are after Jekyll. The police are frustrated and confused by reports of the monster seemingly being in multiple places at once.

Adams' chase ends up back at Jekyll's home, where Hyde falls from an upstairs window to his death, then transforms to his true identity. Meanwhile, Slim brings Tubby, who is still in monster form, to the inspector's office. Tubby bites the inspector and four officers, then reverts to his true self. Before Slim and Tubby can be reprimanded, the inspector and the officers transform into monsters. Slim and Tubby dash through a wall and out of police headquarters.

Barton's daughter Sheila (Karen Morley) insists on taking her father's place on the expedition, as she knows where the tomb is. She finds the tomb and its treasures with the help of her fiance Terrence "Terry" Granville (Charles Starrett), Von Berg (Jean Hersholt), and McLeod (David Torrence). Nayland Smith joins them soon afterward.

McLeod is killed by one of Fu Manchu's men during a robbery attempt, after McLeod kills one of Fu Manchu's men. When that fails, an emissary offers to trade Barton for the priceless artifacts. Despite Terry's misgivings, Sheila persuades him to take the relics to Fu Manchu without Smith's knowledge. However, when Fu Manchu tests the sword, he determines that it is a fake (Nayland had switched them). Terry is whipped under the supervision of Fah Lo See, who is attracted to him. Meanwhile, Fu Manchu has Barton's corpse delivered to Sheila. When Nayland tries to rescue Terry, he is taken captive as well.

Terry is injected with a serum that makes him temporarily obedient to Fu Manchu and released. He tells Sheila and Von Berg that Nayland Smith wants them to bring the sword and mask to him. Sheila senses something is wrong, but Von Berg digs up the real relics, and they follow Terry into a trap.

Captured by Fu Manchu, the party is sentenced to death or enslavement, but not before Sheila manages to bring Terry back to his senses. Sheila is to become a human sacrifice, Nayland Smith is to be lowered into a crocodile pit, and Von Berg placed between two sets of metal spikes inching toward each other. Terry is prepared for another dose of the serum, which will make him a permanent slave of the whims of Fu Manchu's daughter.

However, Nayland Smith manages to free himself, Terry, and Von Berg. Using one of Fu Manchu's own weapons—a death ray that shoots an electric current—the men incapacitate the arch-villain as he raises the sword to execute Sheila.

When Fu Manchu drops the sword, Terry picks it up and hacks him to death. While Terry frees Sheila and carries her away, Nayland Smith and Von Berg incinerate Fu Manchu's followers using the same weapon. Safely aboard a ship bound for England, Nayland Smith tosses the sword over the side so that the world will be safe from any future Fu Manchu.

Phyllis becomes extremely terrified and anxious, since she is convinced that she is the "Wolf-Woman", deeply believing in the legend of the so-called "Curse of the Allenbys". Aunt Martha tries to convince Phyllis how ridiculous the legend sounds, while she (Aunt Martha) and Carol are suspicious in their own ways. Phyllis each day denies Barry visiting her, and when a suspicious detective is murdered soon after he visits the mansion in the same way the other victims perished, Barry begins believing that something else is going on beside the so-called "Werewolf murders", and makes his own investigations both of the park and the mansion. It turns out that Aunt Martha did the attacks to convince Phyllis she was insane, and belonged in an asylum rather than married to Barry, so Martha and her daughter could remain living in the mansion.

Rukh finds the meteorite, but is exposed to its unknown radiation, now dubbed "Radium X". This causes him to glow in the dark and to make his mere touch instantaneous deadly to any living thing. The exposure also begins to warp his mind. Returning to the base camp, he entreats Dr. Benet to devise a means of neutralizing Radium X's poisoning effect. Benet develops a serum that holds the lethal element's toxicity at bay, but Rukh must take regular doses of the antidote or he will revert to being a luminous killing machine. Rukh returns to his jungle base and learns from Benet that this situation has been complicated by the romantic relationship between Rukh's wife, Diana, and Ronald Drake, the nephew of Lady Arabella Stevens, Dr. Stevens' wife.

Benet takes a piece of the meteorite back to Europe, where he modifies its effects to help people, including curing the blind. Working along similar lines, Rukh cures his mother's blindness, but in spite of her warning, he goes to Paris to confront Benet and the others. There, he pretends to acknowledge his wife's new relationship with Drake, but in reality, it is the first step in his plan for revenge. Rukh murders a Frenchman he closely resembles, making it appear that he has died and been rendered unrecognizable due to an accident with Radium X.

Believing the deception, Diana marries Ronald. Rukh now begins to use his radiation poisoning to kill off the expedition members. He marks each death by disintegrating a single statue on the exterior of a church across from where he is hiding. Each time, he focuses the radiation through a window using a raygun-like device. He manages to kill both Stevenses before the police realize what is happening. Dr. Benet helps them set a trap by convening a scientific conference at his home to discuss Radium X, but Rukh secretly gains access and kills Benet. He has saved his revenge on Ronald and Diana for last but finds himself unable to kill his former wife. This hesitation brings him to a confrontation with his mother, the most important woman in his life. She has foreseen her son's growing madness and smashes the last of his antidote bottles in order to stop him. As the Radium X begins to consume him from within, Rukh jumps from a window. He disappears in an explosive flame, having been vaporized before reaching the ground.

The phantom that stole part of the treasure map from Clump reappears and warns Wendy and tells her that she will die if she stays on. She doesn't take this seriously, but the phantom appears once more, this time in her bedroom at night, and warns her again. Everyone believes that someone is pretending to be the ghost in an effort to scare them all off. A man in a cape kills Rod in front of Arleen, but when she gets back to the rest of the group the private investigator McGoon suspects her of being the killer. Bill suspects Tobias, who is still missing, and a "footprint" from a peg-leg is found near Rod's body. It turns out there is big reward set for the dead gangster, "dead or alive". Tobias reunites with the group and tells of a key he has found. It is supposed to unlock a torture chamber in the castle, where Sir Henry Morgan's treasure is hidden. The group enters the chamber but finds only a single gold coin. As they return to the castle's main hall there is a note on the table saying "nine left". The cross-bow fires again, but misses Clump by an inch, killing the phantom instead. It turns out the phantom was no other than an old shipmate of Clump's. On the phantom's body they find the rest of the treasure map.

Bill, Stuff and Clump go to find the treasure, leaving George and Wendy to themselves in the castle. They find a new note saying "eight left" and when George tries to find the anonymous killer, Wendy is abducted by an unknown person. When the rest of the group is back at the castle they find George murdered inside one of the armor suits. Bill realizes that Jasper must be the killer, but when Bill confronts him with Rod's gun in his hand, it turns out the gun is unloaded and Jasper gets the advantage. Bill, Stuff and Wendy escape, but only to find themselves trapped in a secret passage inside the castle walls. As they get rescued by Clump, it turns out the passage leads directly to Sir Henry Morgan's treasure. Jasper follows and finds them, forcing them on to the treasure chamber. As they open the final passage door an axe falls down to kill Jasper. The rest of the group enter the treasure chamber and opens the chest, only to find the skeleton of Sir Henry Morgan himself. Disappointed the group members make their way back to the surface, where they meet a government agent, who offers to buy the whole island from Bill in order to build a naval base. After all the mysteries are solved, Bill and Wendy become a pair, making Bill worth $7,000,000.

When Parker arrives at the island, Moreau welcomes Parker to his home and introduces him to Lota, a young woman whom Moreau claims is of Polynesian origin, and who seems fearful and withdrawn. When she and Parker hear screams coming from another room, which Lota calls "the House of Pain," Parker investigates. He sees Moreau and Moreau's assistant, Montgomery, operating on a human-like creature without anesthetic. Convinced that Moreau is engaged in sadistic vivisection, Parker tries to leave, only to encounter brutish-looking humanoids resembling apes, felines, swine, and other beasts emerging from the jungle. Moreau appears, cracks his whip, and orders them to recite a series of rules ("the Law"). Afterward, the strange "men" disperse.

As Parker spends time with Lota, she falls in love with him. Eventually the two kiss, but Parker is then stricken with guilt, since he still loves his fiancée, Ruth Thomas. As Lota hugs him, Parker examines her fingernails, which are reverting to animalistic claws. He storms into the office of Dr. Moreau to confront him for creating Lota. Dr. Moreau explains that Lota is his most nearly human creation, and he wanted to see if she was capable of falling in love with a man and bearing human-themed children. Enraged, Parker punches Moreau to the ground and demands to leave the island. When Moreau realizes Lota is beginning to revert to her panther origin, he first despairs, believing that he has failed—until he notices Lota weeping, showing human emotion. His hopes are raised and he screams that he will "burn out" the remaining animal in her in the House of Pain.

Meanwhile, the American consul at Apia in Samoa, Parker's original destination, learns about Parker's location from the cowed freighter captain. Fiancée Ruth Thomas persuades Captain Donahue to take her to Moreau's island. She is reunited with Parker, but Moreau persuades them to stay the night. The ape-themed Ouran, one of Moreau's creations, tries to break into Ruth's room. She wakes up and screams for help, and Ouran is driven away. Montgomery confronts Moreau, and implies that Ouran's attempted break-in was arranged by Moreau. Donahue offers to try to reach the ship and fetch his crew. Moreau, seeing him depart, dispatches Ouran to strangle him.

Learning that Moreau has allowed Ouran to break the Law, the other beast-men no longer feel bound by it. They set their huts ablaze and defy Moreau, who tries and fails to regain control. He demands of them, "What is the Law?" Their response is, "Law no more!" The beast-men drag the doctor into his House of Pain, where they bind him, screaming, to the operating table and assault him with his own surgical knives.

With help from the disaffected Montgomery, Parker and Ruth make their escape. Parker insists they take Lota along. When Lota sees Ouran following, she waits in ambush. In the ensuing struggle, both are killed. The others escape by boat as the island goes up in flames, presumably destroying Moreau's work and eradicating the beast-men.

Meanwhile, Hungarian Professor Lazlo arrives at Brewster's house. Brewster has noticed that Alucard is Dracula spelled backwards and Lazlo suspects vampirism. A local boy brought to Brewster's house confirms this suspicion—there are bite marks on his neck. Later, the Count appears to Brewster and Lazlo but is driven away by a cross. Vampiric Katherine enters Frank's cell as a bat and starts his transformation. After he awakens, she tells him she still loves him. She explains that she only married Alucard (who is really Dracula himself) to obtain immortality and wants to share that immortality with Frank. He is initially repulsed by her idea, but then yields to her. After she explains that she has already drunk some of his blood, she advises him on how to destroy Alucard. He breaks out of prison, seeks out Alucard's hiding place and burns his coffin. Without his daytime sanctuary, Alucard is destroyed when the sun rises. Brewster, Lazlo, and the Sheriff arrive at the scene to find Alucard's remains.

Meanwhile, Frank stumbles into the playroom where Katherine said she would be. He finds her coffin and gazes down at her lifeless body. Knowing he must kill the love of his life, Frank takes off his ring and puts it on Katherine's left ring finger. Once Brewster and the others reach the room, they see Frank appear at the door. He steps back allowing them to follow. As they enter the room, they see Katherine's burning coffin. They all stare, speechlessly, while Frank mourns the loss of his love.

Later, the doctor, Peter, and Joan, share a bus, which crashes on a desolate, rain-swept road. Joan is injured, and the doctor and Peter take her to Poelzig's home, built upon the ruins of Fort Marmorus, which Poelzig commanded during the war. Werdegast treats Joan's injury, administering the tranquilizing drug hyoscine, causing her to behave erratically. While Peter puts her to bed, Werdegast accuses Poelzig of betraying the fort during the war to the Russians, resulting in the death of thousands of Austro-Hungarian soldiers. He also accuses Poelzig of stealing his wife Karen while he was in prison. Previously, Werdegast killed Poelzig's black cat, and Poelzig explains that Werdegast has a strong fear of the animals. Poelzig carries a second black cat around the house with him while he oversees his "collection" of dead women on display in glass cases, including Karen.

Poelzig plans to sacrifice Joan in a satanic ritual during the dark of the moon. Poelzig had married Werdegast's wife, and when she died, he married his daughter (who was told her real father died in prison). He is seen reading a book called The Rites of Lucifer while a beautiful blonde woman (Lucille Lund) sleeps next to him. The blonde is Werdegast's daughter – thus, Poelzig's stepdaughter – also named Karen. Werdegast, who is unaware of his daughter's presence, bides his time, waiting for the right moment to strike the mad architect. He also tries to persuade his foe to spare Peter and Joan, at one point gambling with their lives by playing a game of chess with Poelzig, which he loses.

This moment comes during the beginning of the satanists' service, when a female acolyte sees something which causes her to scream and faint. Werdegast and his servant Thamal (Harry Cording) snatch Joan from the sacrificial altar and carry her into the catacombs beneath the house, where Peter is rendered unconscious by Poelzig's servant. Joan tells Werdegast his daughter is alive in the building somewhere. He discovers that Poelzig has killed his daughter, and in an insane rage, shackles him to an embalming rack, where he proceeds to skin Poelzig alive. Joan tries to tear a key from the dead hand of Poelzig's servant, and Peter, regaining consciousness, mistakes Werdegast's attempt to help her as an attack and shoots him. Fatally wounded, Werdegast blows up the house, first letting the couple escape but with Poelzig's "rotten cult" still upstairs. "It has been a good game", he says before he dies.

Even a man who is pure in heart, and says his prayers by night;

May become a wolf when the wolfsbane blooms and the autumn moon is bright.

Later that night, Larry attempts to rescue Gwen's friend, Jenny, from what he believes to be a sudden wolf attack. He kills the beast with his new walking stick but is bitten on the chest in the process. A Romani fortuneteller named Maleva (Maria Ouspenskaya) reveals to Larry that the animal which bit him was actually her son Bela (Bela Lugosi) in the form of a wolf. She also reveals that Larry will transform into a wolf as well since he who is bitten by a werewolf and lives will turn into one himself. From her, Larry learns that silver is the only thing that can kill a werewolf.

Just like Maleva warned, Larry transforms into a werewolf on the following full moon and kills several villagers. He returns to normal the next morning initially with no memory of his rampage, but the recollection of his crimes gradually returns to him, leaving him horrified and wracked with guilt. The night of the next full moon, he begs his father to restrain him to prevent him from hurting anyone else. Nevertheless, he becomes a werewolf once again, breaks free of his restraints, and attacks Gwen. Seeing that his son is doomed to become a werewolf and kill innocent people as long as he lives, Sir John reluctantly puts Larry out of his misery by bludgeoning him over the head with his own silver-headed cane. The movie ends with Sir John and Gwen then watch in horror as the dead werewolf transforms into Larry's human corpse.

Meanwhile in 1940, down on his luck archaeologist Steve Banning and his sidekick, Babe Jenson, discover the remnants of a broken vase in a Cairo bazaar. Banning is convinced it is an authentic ancient Egyptian relic, and his interpretation of the hieroglyphs on the piece lead him to believe it contains clues to the location of the Princess Ananka's tomb. With the support of the eminent Dr. Petrie (Charles Trowbridge) of the Cairo Museum, but against the wishes of Andoheb, who is also employed by the museum, Banning seeks funds for his expedition. Banning and Jenson meet an American magician, Solvani (Cecil Kellaway), who agrees to fund their quest. His daughter Marta is not as convinced, thanks to a prior visit from Andoheb, who brands the two young archeologists as frauds. The expedition departs in search of the Hill of the Seven Jackals, with the Solvanis tagging along. In their explorations, they stumble upon the tomb of Kharis, finding the mummy along with the tana leaves, but find nothing to indicate the existence of Ananka's tomb. Andoheb appears to Dr. Petrie in the mummy's cave and has the surprised scientist feel the creature's pulse. After administering the tana brew from nine leaves, the monster quickly dispatches Petrie and escapes with Andoheb, through a secret passageway, to the temple on the other side of the mountain. The creature continues his periodic marauding about the camp, killing an Egyptian overseer and eventually attacking Solvani and kidnapping Marta. Banning and Jenson set out to track Kharis down, with Jenson going around the mountain and Banning attempting to follow the secret passage they have discovered inside the tomb.

Andoheb has plans of his own. Enthralled by Marta's beauty, he plans to inject himself and his captive with tana fluid, making them both immortal. Jenson arrives in the nick of time, and guns down Andoheb outside of the temple, while Banning attempts to rescue the girl. However, Kharis appears on the scene and Banning's bullets have no effect on the immortal being. Marta overheard Adoheb tell the secret of the tana fluid and tells Banning and Jenson that Kharis must not be allowed to drink any more of the serum. When the creature raises the tana serum to his lips, Jenson shoots the container from his grasp. Dropping to the floor, Kharis attempts to ingest the spilled life-giving liquid. Banning seizes the opportunity to overturn a brazier onto the monster, engulfing it in flames. The ending has the members of the expedition heading happily back to the United States with the mummy of Ananka, and the spoils of her tomb.

The zoo is beginning to run into financial trouble and the new press agent, Peter Yates (Charles Ruggles), a man terrified of most of the zoo's animals and considered to be an alcoholic, suggests hosting a fundraising dinner for the rich to raise funds and awareness. The last straw is when Gorman finds his wife at Hewitt's apartment where they have been plotting their escape and her divorce. Gorman invites Hewitt to the dinner and uses it as the perfect opportunity to dispense his vengeance by poisoning Hewitt with mamba venom. He had obtained the poison after asking the zoo's laboratory doctor, Jack Woodford (Randolph Scott), to work on finding an antitoxin for the snake's fatal bite.

When Hewitt unexpectedly dies at the fundraising dinner, Evelyn accuses her husband of being the murderer. Outraged, Gorman attacks her, but she is able to escape into his office where she finds a mechanical mamba head seeping with real mamba poison in his desk. She now knows for a fact that he killed Hewitt and takes the snake head with the intention to find Dr. Woodford. However, Gorman finds his wife, swears he did everything because he loves her, and prevents her from revealing his crime by throwing her to the alligators, where she is torn to shreds.

Dr. Woodford then becomes suspicious and accuses Gorman of murdering both his wife and Rodger Hewitt. Gorman disposes of Dr. Woodford by attacking him with the mechanical snake head just as he had done to Hewitt. The doctor's assistant Jerry (Gail Patrick) gives Woodford a shot of the antitoxin he had created for the mamba poison in time to save his life. She also realizes that Gorman is responsible for the apparent mamba attack when he tries to stop her, and has the zoo's alarms set off. A police chase ensues as Gorman is pursued through the zoo. Gorman releases big cats from the carnivore house in the hopes of keep back the police, but it backfires and a group of them chases Gorman, and forces him into the cage of a boa constrictor, who then slowly kills and devours him.

Glendon does not believe the mysterious Yogami. That is, not until he begins to experience the first pangs of lycanthropy, first when his hand grows fur beneath the rays of his moon lamp (which he is using in an effort to entice the mariphasa to bloom), and later that night during the first full moon. The first time, Glendon is able to use a blossom from the mariphasa to stop his transformation. His wife Lisa (Valerie Hobson) is away at her aunt Ettie's party with her friend, former childhood sweetheart Paul Ames (Lester Matthews), allowing the swiftly transforming Glendon to make his way unhindered to his at-home laboratory, in the hopes of acquiring the mariphasa's flowers to quell his lycanthropy a second time. Unfortunately Dr. Yogami, who is revealed to be a werewolf, sneaks into the lab ahead of his rival and steals the only two blossoms. As the third has not bloomed, Glendon is out of luck.

Driven by an instinctive desire to hunt and kill, he dons his hat and coat and ventures out into the dark city, killing an innocent girl. Burdened by remorse, Glendon begins neglecting Lisa (more so than usual), and makes numerous futile attempts to lock himself up far away from home, including renting a room at an inn. However, whenever he transforms into the werewolf he escapes and kills again. After a time, the third blossom of the mariphasa finally blooms, but much to Glendon's horror, it is stolen by Yogami, sneaking into the lab while Glendon's back is turned. Catching Yogami in the act, Glendon finally realizes that Yogami was the werewolf that attacked him in Tibet. After turning into the werewolf yet again and slaying Yogami, Glendon goes to the house in search of Lisa, for the werewolf instinctively seeks to destroy that which it loves the most.

After attacking Paul on the front lawn of Glendon Manor, but not killing him, Glendon breaks into the house and corners Lisa on the staircase and is about to move in for the kill when Paul's uncle, Col. Sir Thomas Forsythe (Lawrence Grant) of Scotland Yard, arriving with several police officers in tow, shoots Glendon once. As he lies dying at the bottom of the stairs, Glendon, still in werewolf form, speaks: first to thank Col. Forsythe for the merciful bullet, then saying goodbye to Lisa, apologizing that he could not have made her happier. Glendon then dies, reverting to his human form in death.

Sergeant Wilkes leaves the Whitby gaol to meet an officer from Scotland Yard at the train station. Meanwhile, Dracula's daughter, Countess Marya Zaleska (Gloria Holden), enters the gaol and mesmerises Albert with her jewelled ring and with the aid of her manservant, Sandor (Irving Pichel), steals Dracula's body from the Whitby gaol, and after tossing salt on the pyre, ritualistically burns Dracula's body, hoping to break her curse of vampirism. However, Sandor soon begins to discourage her, telling her that all that is in her eyes is "death". She soon gives in to her thirst for blood. The Countess resumes her hunting, mesmerising her victims with her exotic jewelled ring. After a chance meeting with Dr. Garth at a society party, the Countess asks him to help her overcome the influence she feels from beyond the grave. The doctor advises her to defeat her cravings by confronting them, and the Countess becomes hopeful that her will, plus Dr. Garth's science, will be strong enough to overcome Dracula's malevolence.

The Countess sends Sandor to fetch her a model to paint. He sees a pretty young woman, Lili (Nan Grey), and follows her onto a bridge. The woman pauses at the railing looking despondent. Sandor promises her food, warmth, and money. She hesitates, but Sandor explains that he seeks her for his mistress. Lili returns with Sandor. Countess Zaleska initially resists her urges, but succumbs and attacks her. Lili survives the attack and is examined by Dr. Garth through hypnosis; she reveals enough information to let Dr. Garth know that Countess Zaleska was who attacked her, but she suffers heart failure and dies. The Countess gives up fighting her urges and accepts that a cure is not possible; she lures Dr. Garth to Transylvania by kidnapping Janet Blake (Marguerite Churchill), his secretary, with whom he has a playfully antagonistic relationship, but now realises that he cares for her. Zaleska intends to transform Dr. Garth into a vampire to be her eternal companion. Arriving at Castle Dracula in Transylvania, Dr. Garth agrees to exchange his life for Janet's. Before he can be transformed, Countess Zaleska is destroyed when Sandor shoots her through the heart with an arrow as revenge for her breaking her promise to make him immortal. He takes aim at Dr. Garth, but is shot dead by a Scotland Yard policeman, who along with Van Helsing, has followed Dr. Garth from London.

After Vollin reveals his growing love for Jean to her father, the Judge quickly discourages him from the affair. Angered, Vollin hatches a plan when Edmond Bateman (Karloff), a murderer on the run, comes to his home asking for a new face so he may live in anonymity. Vollin admits to not being a plastic surgeon, but says he can help Bateman, and asks him to help in exacting revenge on the Thatchers, which he refuses. Bateman explains that he feels his antisocial behavior is a result of having been called ugly all his life, and he hopes a new face may gave him a chance to end it. Vollin performs the surgery, but instead turns Bateman into a disfigured monster, promising only to operate again on Bateman when Vollin's revenge is exacted. Bateman finally reluctantly agrees.

Vollin hosts a dinner party, among which Jean, Jerry, and the Judge are guests. One by one, the guests are caught in the Poe-inspired traps. Ultimately, Bateman is shot by Vollin as he rescues Jean and Jerry, but throws Vollin into the shrinking room where he perishes, and the guests escape.

Edelmann searches for Talbot in the cave where they find the catatonic Frankenstein's monster, still clutching the skeleton of Dr. Niemann. Humidity in the cave is perfect for propagating the clavaria formosa, and a natural tunnel in the cave connects to a basement of the castle. Dr. Edelmann takes the monster back to his lab, but considers it too dangerous to revive him. Meanwhile, The Count tries to seduce Milizia and make her a vampire, but Milizia wards him off with a cross. Edelmann interrupts to explain that he has found strange antibodies in the Count's blood, requiring another transfusion. Edelmann's assistant Nina begins shadowing Milizia and discovers that the Count casts no reflection in a mirror. She warns Edelmann of the vampire's danger to Milizia. Edelmann prepares a transfusion that will destroy the vampire. During the procedure, The Count uses his hypnotic powers to put Edelmann and Nina to sleep and reverses the flow of the transfusion, sending his own blood into the doctor's veins. When they awake, The Count is carrying Milizia away. They revive Talbot and force the Count away with a cross who returns to his coffin as the sun is beginning to rise. Edelmann follows him and drags the open coffin into the sunlight, destroying him.

Edelmann begins to react to Dracula's blood and finds that he no longer casts a reflection in a mirror. Falling unconscious, he sees strange visions of a monstrous version of himself performing unspeakable acts. Edelmann awakens, and tries to perform the operation on Talbot. Edelmann begins leaping into a more monstrous personality, and murders his gardener. When the townspeople discover the body, they chase Edelmann, believing him to be Talbot. They follow him to the castle, where Holtz and Steinmuhl interrogate Talbot and Edelmann. Steinmuhl is convinced that Edelmann is the murderer, and assembles a mob to execute him. Talbot is cured by the operation, but Edelmann again turns into his mostrous self. Edelman revives Frankenstein's monster, with the others witnessing Edelmann's transformation, and Edelmann breaks Nina's neck and tosses her body into the cave. Holtz and Steinmuhl lead the townspeople to the castle where the police attack the monster, but are subdued by the creature. Edelmann kills Holtz by accidental electrocution and Talbot shoots Edelmann dead. Talbot traps the monster under fallen shelving as a fire breaks out, and the townspeople flee the burning castle. The burning roof collapses on the monster.

Back at his lab, Walters and his assistant Miss Strand (Fay Helm) transplant glandular material from Dorothy into Cheela. There was discussion by Miss Strand that Walters has previously grafted the glands of different animals like placing a guinea pig's glands into a rabbit and a frog's glands into a mouse. To the horror of the nurse, the ape transforms into human form (Acquanetta). Telling the doctor that she cannot allow him to continue, Miss Strand informs him that at best he will have “a human form, with animal instincts.” Dr. Walters reaches the conclusion that he will need to place a human brain into his creation to successfully complete his experiment. While watching Mason practice his animal act, an accident occurs. Paula rushes into the cage and saves him from the ferocious felines, who display an unnatural fear of her and retreat from her presence. Mason is dumbfounded and offers the girl a job in his act.

Beth receives a frantic telephone call from her sister who expresses her fear of Dr. Walters and the forthcoming operation. Arriving at the Sanatorium to aid her sister, Beth is pegged by the good doctor as the next brain donor for Cheela. However, she proves resourceful in a pinch, releasing the ape from its cage. Cheela does Walters in and departs the lab, leaving Beth and Dorothy unharmed. Performing his animal act solo, Mason finds himself trapped inside the cage with his unruly subjects. A powerful storm interrupts the performance and the beasts attack the trainer. Cheela comes to his rescue once again and carries him to safety. Unfortunately, a nearby police officer mistakes her intentions and kills Cheela.

Henry's fiancée Elizabeth speaks with their friend Victor Moritz about the scientist's increasingly peculiar actions and how he secludes himself. Elizabeth and Victor ask Dr. Waldman for help in understanding Henry's new behavior and Waldman reveals he is aware Dr. Frankenstein wishes to create life. Concerned for Henry, they arrive at the lab just as the scientist makes his final preparations. With a pulley system, Frankenstein and Fritz raise the operating table high in the room, moving it toward an opening at the top of the tower. The creature and Frankenstein's equipment are exposed to the lightning storm and empowered. The hand of Frankenstein's creature begins to move. The scientist triumphantly shouts, 'It's alive!'

Frankenstein's Monster, despite its grotesque form, seems to be an innocent, childlike creation. Dr. Frankenstein welcomes it into his laboratory and asks his creation to sit, which it does. Thinking that it is not fit for society and will wreak havoc at any chance, they leave the Monster locked up, where Fritz antagonizes it with a torch. As Henry and Waldman consider the Monster's fate, they hear a shriek from the dungeon. Frankenstein and Waldman run down and find that the Monster has strangled Fritz. The Monster lunges at the two but they escape, locking the Monster inside. Realizing that the Monster must be destroyed, Henry prepares an injection of a powerful drug and the two conspire to release the Monster and inject it as it attacks. When the door is unlocked the Monster lunges at Frankenstein as Waldman injects the drug into the Monster's back. The Monster falls to the floor unconscious.

Henry collapses from exhaustion, and Elizabeth and Henry's father arrive and take him home. Henry is worried about the Monster but Waldman reassures him that he will destroy it.

With preparations for the wedding completed, Henry is serenely happy with Elizabeth. They are to marry as soon as Waldman arrives. However, Victor rushes in, saying that Doctor Waldman has been found strangled. Henry suspects the Monster. Meanwhile, the Monster enters Elizabeth's room, causing her to scream. When the searchers arrive, they find Elizabeth unconscious on the bed. The Monster has escaped.

Maria's father arrives, carrying his drowned daughter's body. He says she was murdered, and the villagers form a search party to capture the Monster and bring it to justice, dead or alive. In order to search the whole country for the Monster, they split into three groups: Ludwig leads the first group into the woods, Henry leads the second group into the mountains, and the Burgomaster leads the third group by the lake. During the search, Henry becomes separated from the group and is discovered by the Monster, who attacks him. The Monster knocks Henry unconscious and carries him off to an old mill. The peasants hear his cries and they regroup to follow. They find the Monster has climbed to the top, dragging Henry with him. The Monster hurls the scientist to the ground. His fall is broken by the vanes of the windmill, saving his life. Some of the villagers hurry him to his home while the rest of the mob set the windmill ablaze, with the Monster trapped inside.

At Castle Frankenstein, Frankenstein's father, Baron Frankenstein, celebrates the wedding of his recovered son with a toast to a future grandchild.

Coincident with the arrival of the three male physicians is the appearance of a lady psychiatrist, Dr. Lynn Harper, summoned secretly by Margaret to prove she is not insane and help her secure freedom from the control of Ingston and Miss Judd. She arrives accompanied by a neighbor: mystery-writer Dick Baldwin, who rescued her after her car broke down in the swamp. Neither Ingston nor Miss Judd welcome her presence, but must contend with keeping her overnight until her car can be repaired.

Following dinner, at which Ingston's conviction that the three doctors are directly responsible for his current condition becomes evident, the party witnesses an exhibition of materialization of an Egyptian skeleton by Agar Singh. Dr. Harper is forbidden to meet with Margaret. Then, one by one, the doctors are frightfully killed as they prepare for bed. Suspecting Ingston, Dick and Police Captain Beggs confront him in his room, but discover he is not paralyzed but a quadruple amputee. Suspicion then falls on Lawrie, who was last seen driving a murdered ex-employee of the household back to town, but he, too, winds up dead.

Ultimately, Dick confronts the killer outside the estate as he menaces Lynn, and discovers it is Ingston after all: by studying under Agar Singh, he has learned how to materialize arms and legs, hands and feet for himself, long enough to accomplish his evil deeds. As Dick struggles with him to the death, Margaret sets fire to the unholy house, committing suicide while taking the malevolent Miss Judd with her. As the house burns to the ground, Dick and Lynn are saved by Agar Singh, when Singh shoots Ingston. -Wiki

The stranger is Dr. Jack Griffin, a chemist who discovered the secret of invisibility while conducting a series of tests involving an obscure drug called monocane. Flora Cranley, Griffin's fiancée and the daughter of Griffin's employer, Dr. Cranley, becomes distraught over Griffin's long absence. Cranley and his other assistant, Dr. Kemp, search Griffin's empty laboratory, finding only a single note in a cupboard. Cranley becomes concerned when he reads it. On the note is a list of chemicals, including monocane, which Cranley knows is extremely dangerous; an injection of it drove a dog mad in Germany. Griffin, it seems, is unaware of this. Cranley deduces that he may have learned about monocane in English books printed before the incident that describe only its bleaching power.

On the evening of his escape from the inn, Griffin turns up at Kemp's home. He forces Kemp to become his visible partner in a plot to dominate the world through a reign of terror, commencing with "a few murders here and there." They drive back to the inn to retrieve his notebooks on the invisibility process. Sneaking inside, Griffin finds a police inquiry underway, conducted by an official who believes that it is all a hoax. After securing his books, Griffin angrily attacks and kills the officer.

Back home, Kemp calls first Cranley, asking for help, and then the police. Flora persuades her father to let her come along. In her presence, Griffin becomes more placid and calls her "darling." When he realizes that Kemp has betrayed him, his first reaction is to get Flora away from danger. After promising Kemp that at 10 o'clock the next night he will murder him, Griffin escapes and goes on a killing spree. He causes the derailment of a train, resulting in a hundred deaths, and throws two volunteer searchers off a cliff. The police offer a reward for anyone who can think of a way to catch him.

The chief detective in charge of the search uses Kemp as bait, feeling that Griffin will try to fulfill his promise, and devises various clever traps. At Kemp's insistence, the police disguise him in a police uniform and let him drive his car away from his house. Griffin, however, is hiding in the back seat of the car. He overpowers Kemp and ties him up in the front seat. Griffin then sends the car down a steep hill and over a cliff, where it explodes on impact.

Griffin seeks shelter from a snowstorm in a barn. A farmer hears snoring and sees the hay, in which Griffin is sleeping, moving. The man notifies the police. The police surround the building and set fire to the barn. When Griffin comes out, the chief detective sees his footprints in the snow and opens fire, mortally wounding him. Griffin is taken to the hospital where, on his deathbed, he admits to Flora that "I meddled in things that man must leave alone." As he dies, his body gradually becomes visible again. -Wikipedia

Renfield enters the castle welcomed by the charming but eccentric Count, who, unbeknownst to Renfield, is a vampire. They discuss Dracula's intention to lease Carfax Abbey in London, where he intends to travel the next day. Dracula hypnotizes Renfield into opening a window. Renfield faints as a bat appears, and Dracula's three wives close in on him. Dracula waves them away, then attacks Renfield himself.

At a London theatre, Dracula meets Seward. Seward introduces his daughter Mina, her fiancé John Harker, and the family friend Lucy Weston. Lucy is fascinated by Count Dracula. That night, Dracula enters her room and feasts on her blood while she sleeps. Lucy dies the next day after a string of transfusions.

Renfield is obsessed with eating flies and spiders. Professor Van Helsing analyzes Renfield's blood and discovers his obsession. He starts talking about vampires, and that afternoon Renfield begs Seward to send him away, claiming his nightly cries may disturb Mina's dreams. When Dracula calls Renfield with a wolf howling, Renfield is disturbed by Van Helsing, showing him wolfsbane, which Van Helsing says is used for protection from vampires.

Dracula visits Mina, asleep in her bedroom, and bites her. The next evening, Dracula enters for a visit, and Van Helsing and Harker notice that he does not have a reflection. When Van Helsing reveals this to Dracula, he smashes the mirror and leaves. Van Helsing deduces that Dracula is the vampire behind the recent tragedies.

Mina leaves her room and runs to Dracula in the garden, where he attacks her. The maid finds her. Newspapers report that a woman in white is luring children from the park and biting them. Mina recognizes the lady as Lucy, risen as a vampire. Harker wants to take Mina to London for safety but is convinced to leave Mina with Van Helsing. Van Helsing orders Nurse Briggs to take care of Mina when she sleeps and not to remove the wreath of wolfsbane from her neck.

Renfield escapes from his cell and listens to the men to discuss vampires. Before his attendant takes Renfield back to his cell, Renfield relates to them how Dracula convinced Renfield to allow him to enter the sanitorium by promising him thousands of rats with blood and life in them. Dracula enters the Seward parlor and talks with Van Helsing. Dracula states that Mina now belongs to him and warns Van Helsing to return to his home country. Van Helsing swears to excavate Carfax Abbey and destroy Dracula. Dracula attempts to hypnotize Van Helsing, but the latter's resolve proves stronger. As Dracula lunges at Van Helsing, he withdraws a crucifix from his coat, forcing Dracula to retreat.

Dracula hypnotizes Briggs into removing the wolfsbane from Mina's neck and opening the windows. Van Helsing and Harker see Renfield heading for Carfax Abbey. They see Dracula with Mina in the abbey. When Harker shouts to Mina, Dracula thinks Renfield has led them there and kills him. Dracula is hunted by Van Helsing and Harker, who know that Dracula is forced to sleep in his coffin during daylight, and the sun is rising. Van Helsing prepares a wooden stake while Harker searches for Mina. Van Helsing impales Dracula through the heart, killing him, and Mina returns to normal. -Wikipedia