An acid-scarred composer rises from the Paris sewers to boost his favorite opera understudy's career.

After being awakened, Larry Talbot chips Frankenstein's Monster out of a block of ice. When Talbot changes to the Wolf Man, the two creatures battle each other.

A resurrected Egyptian mummy searches Cairo for the girl he believes to be his long-lost princess.

Returning to the ancestral castle long after the death of the monster, the son of Dr. Frankenstein meets a mad shepherd who is hiding the comatose creature. To clear the family name, he revives the creature and tries to rehabilitate him.

Dr. Bernard Adrian is a kindly mad scientist who seeks to cure a young woman's polio. He needs spinal fluid from a human to complete the formula for his experimental serum. Meanwhile, a vicious circus ape has broken out of its cage, and is terrorizing towns people.

A ruthless doctor and his young prize student find themselves continually harassed by their murderous supplier of illegal cadavers.

An obsessed scientist assembles a living being from parts of exhumed corpses.

An evil scientist and his hunchbacked assistant escape from prison and encounter Dracula, the Wolf Man and Frankenstein's Monster.

American honeymooners in Hungary become trapped in the home of a Satan-worshiping priest when the bride is taken there for medical help following a road accident.

Mary Shelley reveals the main characters of her novel survived: Dr. Frankenstein, goaded by an even madder scientist, builds his monster a mate.

Sir Joel Cadman, a mad scientist, kidnaps his victims and cuts open their brains in an effort to discover a means to cure his wife's brain tumor.

Count Dracula and the Wolf Man seek cures for their afflictions; a hunchbacked woman, a mad scientist and Frankenstein's Monster have their own troubles.

The ancient Egypt Mummy, Kharis, is transported from his homeland with the high priest Mehemet to wreak vengeance on the family who has defiled the sacred tomb of his beloved Princess Ananka.

Kharis the mummy is given a sacred potion that grants him eternal life to search for his lost love, Princess Ananka, despite the unending curse that haunts them.

A stage mentalist involved in a mysterious death and a discredited plastic surgeon are among the assorted characters involved in mysterious goings-on in an eerie wax museum.

Shipped to Louisiana, the mummy Kharis from Egypt roams the bayou, tormented by his forbidden love for Princess Ananka.

When Katherine, a beautiful Southern girl obsessed with thoughts of eternal life, invites Count Alucard to come to her mansion in the U.S., she unleashes a Pandora's box of horror on unsuspecting relatives and neighbors.

An expedition to Mexico finds and does battle with a mutated 25-foot man with one big eye.

A practical man returns to his homeland, is attacked by a creature of folklore, and infected with a horrific disease his disciplined mind tells him can not possibly exist.

A doctor is not sure if he murdered his beautiful but wicked wife, and has his attractive nurse try to find the truth by hypnotizing him.

A mad scientist turns a man into an electrically-controlled monster to do his bidding.

Attorney Wayne Fletcher and his secretary are having an affair, so when Wayne's wife is found smothered to death, he becomes the prime suspect. As the police investigate the murder, a psychic with questionable motives tries to contact the deceased woman. Soon, Wayne begins seeing visions of his dead wife, and other people involved with the case begin to be killed, one by one.

A brilliant surgeon with a morbid obsession for instruments of torture grows dangerously obsessed with a young socialite whose life he's saved.

A mad scientist seeks to mingle human blood with that of an ape, and resorts to kidnapping women for his experiments.

An eccentric scientist helps a fugitive from the law become invisible, unwittingly giving him the power to exact revenge on his former friends.

After hapless pianist and ex-con John Elman is framed for murder, he is resurrected by a scientist after his execution.

An Egyptologist returns from the dead to take revenge on those who have violated his tomb.

A researcher investigating a notorious serial killer who was hanged 20 years earlier seemingly becomes possessed by the long dead strangler.

A strange prehistoric beast lurks in the depths of the Amazonian jungle. A group of scientists try to capture the animal and bring it back to civilization for study.

Men capture the Creature from the Black Lagoon and make him an aquarium attraction, from which he escapes.

American G.I.s who trespass on a Hindu ceremony are hunted down by a beautiful woman who has the power to transform herself into a cobra.

A scientist finds a way of becoming invisible, but in doing so, he becomes murderously insane.

A scientist becomes murderous after discovering, and being exposed to the radiation of, a powerful new element called Radium X.

A mad doctor conducts ghastly genetic experiments on a remote island in the South Seas, much to the fear and disgust of the shipwrecked sailor who finds himself trapped there.

A young man turns to a witch doctor to lure the woman he loves away from her fiancé, but instead turns her into a zombie slave.

A mad scientist develops an aftershave lotion that causes his gigantic bats to kill anyone who wears it.

Transylvanian vampire Count Dracula bends a naive real estate agent to his will, then takes up residence at a London estate where he sleeps in his coffin by day and searches for potential victims by night.

An obsessed pathologist discovers and captures a parasitic creature that grows when fear grips its host.

Philippe Delambre, the now-adult son of "The Fly", does some transportation experimentation of his own.

The owner of a coal mining operation, falsely imprisoned for fratricide, takes a drug to make him invisible, despite its side effect: gradual madness.

An associate burns down a wax museum with the owner inside, but he survives only to become vengeful and murderous.

A scientist has a horrific accident when he tries to use his newly invented teleportation device.

A millionaire offers $10,000 to five people who agree to be locked in a large, spooky, rented house overnight with him and his wife.

A series of decapitations on a Swiss mountainside appear to be connected to a mysterious radioactive cloud.

On a spooky island, three stranded travelers find an evil doctor working with foreign spies and in control of zombies.

A beautiful woman is sent back in time via hypnosis to the Middle Ages where she finds she is suspected of being a witch, and subject to being executed.

American botanical expedition in the Himalayas stumbles across a Yeti den, capture one and transport it back to Los Angeles, where it escapes while customs officials are debating whether it is animal or human.

After a series of unsolved murders, a man finds out that his mother was bitten by a vampire bat during her pregnancy, and he believes that he may be the vampire committing the murders.

Seeking shelter from a storm, five travelers are in for a bizarre and terrifying night when they stumble upon the Femm family estate.

Hungarian countess Marya Zaleska seeks the aid of a noted psychiatrist, hoping to free herself of a mysterious evil influence.

When Ygor brings the Monster to Dr. Ludwig Frankenstein for care, Ludwig gets the idea of replacing the Monster's current criminal brain with a normal one.

After botanist Wilfred Glendon travels to Tibet in search of a rare flower, he returns to a London haunted by murders that can only be the work of bloodthirsty werewolves.

In 15th-century France, a gypsy girl is framed for murder by the infatuated Chief Justice, and only the deformed bellringer of Notre Dame Cathedral can save her.

Dr. Jekyll faces horrible consequences when he lets his dark side run wild with a potion that transforms him into the animalistic Mr. Hyde.

An American man marries a Serbian immigrant who fears that she will turn into the cat person of her homeland's fables if they are intimate together.

The young, friendless daughter of Oliver and Alice Reed befriends her father's dead first wife and an aging, reclusive actress.

Scientists and American Air Force officials fend off a bloodthirsty alien organism while at a remote arctic outpost.

A Canadian nurse is hired to care for the wife of a sugar plantation owner, who has been acting strangely, on a Caribbean island.

The town's leading citizen becomes a homicidal maniac after his wife deserts him.

A security agent investigates sabotage and murder at a secret underground laboratory, home of two experimental robots.

A spider escapes from an isolated Arizona desert laboratory experimenting in gigantism and grows to tremendous size as it wreaks havoc on the local inhabitants.

In 1870s Transylvania, scientist Dr. Callistratus is put to death by villagers who wrongly believe he's a vampire. However, his horribly disfigured henchman, Carl is on hand to orchestrate a life-saving heart transplant.

In 1895, British archaeologists find and open the tomb of Egyptian Princess Ananka with nefarious consequences.

Edward Jekyll, ignorant of how his father had brought forth death and destruction with his experiments, is pursuing a chemist career despite the fact that he has been discharged from school or his unorthodox experimentations. When the time comes for his father's estate, which had been put in trust, Edward first learns of his father's actions and rather than ignore the matter, sets out to prove that human personality can be changed by certain chemical stimulations. But he hasn't reckoned on Dr. Curtis Lanyon, a prominent doctor and close friend of the family. Lanyon wants to get his hands on the estate and resorts to murder and frame-ups to make Edward appear to be as insane as his father.

Scientist becomes obsessed with the idea of communicating with his dead wife.

American professor John Holden arrives in London for a parapsychology conference, only to find himself investigating the mysterious actions of Devil-worshiper Julian Karswell.

A trilogy of fantastic stories involving murder and the supernatural.

A young divorcee tries to convert a historic house into a hotel despite its oddball inhabitants and dead bodies in the cellar.

When corpses drained of blood begin to show up in a European village, vampirism is suspected to be responsible.

The disappearance of people and corpses leads a reporter to a wax museum and a sinister sculptor.

An ancient mummy is revived to destroy the invaders of the 3,000 year-old tomb of an Egyptian princess.

A centenarian artist and scientist in 1890 Paris maintains his youth and health by periodically replacing a gland with that of a living person.

An attractive model with an ulterior motive volunteers as guinea pig for an invisibility machine.

The Invisible Man's grandson uses his secret formula to spy on Nazi Germany.

Rocks from a meteor which grow when in contact with water threaten a sleepy Southwestern desert community.

Man investigates the disappearance of two of his friends who were the guests of a sinister Austrian count.

A physician on death row for a mercy killing is allowed to experiment on a serum using a criminals' blood, but secretly tests it on himself. He gets a pardon, but finds out he's become a Jekyll-&-Hyde.

Don Gallico is a master at designing magical illusions which are sold by his employer, Mr. Ormond, to famous magicians such as Rinaldi. He is also a master of disguise and realistic mask design. When Don embarks upon his own career as Gallico the Great, showcasing his own masterful illusions, his dreams are shattered by Ormond and he turns to murder to vent his frustrations.

A traveller arrives at the Usher mansion to visit his old friend, Roderick Usher. Upon arriving, however, he discovers that Roderick and his sister, Madeline, have been afflicted with a mysterious malady: Roderick's senses have become painfully acute, while Madeline has become nearly catatonic. That evening, Roderick tells his guest of an old Usher family curse: any time there has been more than one Usher child, all of the siblings have gone insane and died horrible deaths. As the days wear on, the effects of the curse reach their terrifying climax.

Two scientists on an expedition to the West Indies discover a serum which changes humans into cats, or. at least, to catlike killers. One believes they should continue with their experiments and the other does not, which disagreement costs him his life. Several deaths occur before the first scientist is halted in his mad plans.

A kindly English botanist and a gruff American scientist lead an expedition to the Himalayas in search of the legendary Yeti.

Victor Frankenstein builds a creature and brings it to life, but it behaves not as he intended.

Baron Frankenstein escapes from the guillotine and goes to Germany. There, he names himself Dr. Stein and plans to restart his experiments by using parts of dead bodies.

Jonathan Harker begets the ire of Count Dracula after he accepts a job at the vampire's castle under false pretenses, forcing his colleague Dr. Van Helsing to destroy the predatory villain when he targets Harker's loved ones.

In the 1830s, a captain in the East India Company lobbies to investigate the criminal Thugee Cult of Kali, an organized crime group of stranglers and thieves.

In the early twentieth century, a Gorgon takes human form and terrorizes a small European village by turning its citizens to stone.

A frustrated thriller writer wants accurate crimes for his next book so he hypnotizes his assistant to make him commit the required crimes.

A photographer on an expedition in the jungle runs afoul of a voodoo cult.

A psychically gifted young woman discovers a centuries-old crate buried on her aunt's ranch. Opening it, her family discovers the living head of Gideon Drew, a 16th century devil worshiper who was beheaded by Sir Francis Drake.

Noble-born cad Denis (Stapley) has been tricked into a forced stay at the eerie manor of the Sire de Maletroit (Laughton), an evil madman who can't get over the death of his beloved, twenty years after she married his brother (Cavanagh) instead and subsequently passed away during childbirth. Maletroit is determined to have his revenge: the brother has been stowed away in the dungeon for two decades, while he's convinced his disreputable house guest will make a suitably hellish husband for his niece. As luck would have it, the young couple manage to fall in love, and with the help of manservant Voltan (Karloff), they try to make their escape, but not before a final confrontation with Maletroit in the dungeon's crushing deathtrap.

A young heiress finds evidence suggesting that at night she acts under the influence of a family curse and has begun committing ghastly murders in a nearby park.

While on a South Seas trip, a professor falls in love and marries an exotic native woman. What he doesn't know is that she was raised by superstitious natives who believe her to be some kind of supernatural being.

Emily, a pretty young Irish girl, gets a job on an English farm owned by the Tallent family. The local men take to her but the women don't, objecting to her flirtatious nature with their men and one woman, Bess Stanforth, is especially disturbed by her. When Dan, a man from Emily's past, shows up and accuses her of having tried to kill him Beth's suspicions are further aroused, and they're confirmed when Dan is found murdered in a local barn. Beth sets out to find out exactly who Emily is and to prove that she murdered Dan.

A young woman raised by gypsies hides a deadly secret which she will do anything to protect.

A mad scientist changes his simple-minded handyman into a werewolf in order to prove his supposedly crazy scientific theories - and exact revenge.