Now confined to a mental hospital, young Kirsty insists her supposedly dead father is actually stuck in Hell following his wife’s betrayal. Few believe the young woman’s lurid stories aside from the thrill-seeking Dr. Channard. Kirsty is undeterred and, with the help of a fellow patient, heads to Hell for a rescue.
After Malukan immigrants engage in a string of corpse mutilations at various New York City hospitals, a doctor and a morgue assistant travel to the Maluku Islands to investigate.
A homeless man is hired as a survival guide for a group of wealthy businessmen on a hunting trip in the mountains, unaware that they are killers who hunt humans for sport, and that he is their new prey.
When a family moves to a small town they discover an extreme haunted house run by a charming retired surgeon. Things start getting out of hand when they realize he is going too far.
University professor George Kingsley is struck by gangsters while crossing the street, leaving him with brain damage and one of the gangsters, Cannon, paralyzed. Kingsley's friend Dr. Sovac attends to both men, and when Cannon offers him a reward for aiding his recovery, Kovac transplants part of Cannon's brain into the dying Kingsley's skull, creating a dual personality.
After a team of surgeons botches his beloved wife's operation, the distraught Dr. Phibes unleashes a score of Old-Testament atrocities on his enemies.
A depraved scientist falls madly in love with a young woman and turns her lover into a hideous monster for meddling in his diabolical plans.
A mad scientist creates a monster called "Mosaico," who breaks out of the laboratory to hunt down and kill beautiful women.
Professor Frankenstein creates a teenager from an accident victim, who gets angry when he learns he is going to be taken apart.
Innocent women are being kidnapped and used as guinea pigs for a brain transplant experiment. The diabolical Dr. Frankenstein continues his quest to perfect his brain transplant operation to bring back his deceased wife at any cost - even if it means playing with the lives of others. El Santo and Blue Demon are called in to help when their friend Alicia becomes Dr. Frankenstein's next target. It'll take both heroes to go up against the dastardly doctor and go mano a mano with his super strong zombie Golem.
An obsessed scientist conducts profane experiments in evolution, eventually establishing himself as the self-styled demigod to a race of mutated, half-human abominations.
Henry Frankenstein pieces together body parts in the hope of bringing a human-like creature to life. The mad scientist’s dreams are shattered by his monstrous creation awakening with rage to a world that hates and fears him.
When legendary hunter Bob Rainsford is shipwrecked on the perilous reefs surrounding a mysterious island, he finds himself the guest of the reclusive and eccentric Count Zaroff. While he is very gracious at first, Zaroff eventually forces Rainsford and two other shipwreck survivors, brother and sister Eve and Martin Towbridge, to participate in a sadistic game of cat and mouse in which they are the prey and he is the hunter.
When a woman's father goes missing, she enlists a local to aid in her search. The pair soon discover that her father has died at the hands of a wealthy sportsman who hunts homeless men as a form of recreation.
A mad doctor uses patients at his isolated psychiatric institute as subjects in his attempts to create longevity by surgically installing an artificial gland in their skulls.
An insane surgeon's obsession with an actress leads him to replace her wounded pianist husband's hands with those of a knife-throwing murderer.
An obsessed fan and his mother kidnap former 'scream queens' and force them to reenact their famous film roles...with deadly results.
A surgeon transplants the heart of an ape into his ailing son with horrific results.
All-out war between the United States and an Asian country is averted when the two sides agree to settle their differences by each choosing a single soldier as champion and having the two men fight to the death on an isolated island.
A fugitive, dangerous madman reaches an English village where he confronts his former partner who left him for dead in the jungle after their discovery of a diamond mine. When the former partner also claims to have since lost the mine and all its wealth, which he took all for himself, and though the partner is still living in a state of luxury , the madman takes up an offer from a crazed scientist to make him invisible, something the scientist has already done with experimental animals, so that he can take revenge.