Dr. Frankenstein is left for dead in the woods. His daughter, Dr. Vera Frankenstein, hunts for his attacker: Dr. Cagliostro, a mad scientist who’s created a race of human-animal hybrids.
Professor Frankenstein creates a teenager from an accident victim, who gets angry when he learns he is going to be taken apart.
In the 1800s, a stormy love relationship develops quickly between a young medical student and a woman believing herself to be the daughter of his scientist uncle, the student having never heard of her before their chance encounter and both unaware that she is the result of the scientist's illegal experiments with artificial insemination..
An obsessed scientist conducts profane experiments in evolution, eventually establishing himself as the self-styled demigod to a race of mutated, half-human abominations.
Tampering with life and death, Henry Frankenstein pieces together salvaged body parts to bring a human monster to life; the mad scientist's dreams are shattered by his creation's violent rage as the monster awakens to a world in which he is unwelcome.
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.
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.
A mad scientist creates a monster called "Mosaico," who breaks out of the laboratory to hunt down and kill beautiful women.
British estate agent Renfield travels to Transylvania to meet the mysterious Count Dracula, who is interested in leasing a castle in London. After Dracula enslaves Renfield and drives him to insanity, the pair sail to London together and Dracula, a secret vampire, begins preying on London socialites.
Confined to a mental hospital, young Kirsty Cotton insists her supposedly dead father is stuck in hell, controlled by sadomasochistic demons after being betrayed by his evil, occult-obsessed wife, Julia. Few believe Kirsty, except the thrill-seeking Dr. Channard, who is intrigued by the young woman's lurid stories. So when Kirsty and fellow patient Tiffany head to hell for a rescue, Channard and Julia are close behind.
A diverse group of ex-cons-turned-movers are convinced by their creepy client, Vern Muller, to pull an all-nighter for a generous pay bump. As the night progresses and rooms are cleared, they slowly uncover the horrors that exist inside his old Victorian mansion, which include boobytraps, human experimentation, Nazi monsters and more. Will they survive the night?
In Germany at the height of World War II, a ragtag group of American soldiers discover Doctor Mengele's diabolical plan to create an unstoppable army of Nazi werewolves.
Jim and Brad make their annual hunting trip to the desert, but this year everything is different: Their third partner, Paul, has died in an accident and they've taken his nephew, Ray, along in his place. When they arrive, though, there's not a single animal to be found, only a grizzled old-timer who joins them. When they meet two female campers, they all begin to behave aggressively, unable to resist their animal urges. The next morning the women have disappeared, but the strange moods and behaviors persist and change in ominous ways. Something has them in its grip and it has total control over them...
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 partmer 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.
In 19th century England, a noted brain surgeon rescues a former student from being hanged on a false conviction for murder, and spirits him away to an ancient, repurposed abbey far in the countryside. There, he connives his pupil into assisting him in mapping the functions of the various parts of the human brain, using living subjects who are under a terrible animation-suspending drug called "black sleep". Subsequently, the student, along with the daughter of one of the subjects, discover that most of these subjects have survived but are being kept in a dungeon-like cellar, in various stages of physical and mental derangement...
A young psychiatric nurse goes to work at a lonesome asylum following a murder. There, she experiences varying degrees of torment from the patients.
Mythology and religious dogma are slowly revealed when an attractive young woman is approached by a modeling agency that pulls her into an underworld of priests that are not Christian but rather want to resurrect Satan by collecting the souls of 18 beautiful children.
An ex-vaudeville actor is working as the assistant to a doctor who has Frankenstein aspirations. The ex-vaudeville actor kills the doctor and decides to assume the identity of the dead physician.
Following his forced retirement from an appalling rock band, Jason decides to vacation at Brittlehouse Manor, a health farm run by the leather-gloved, ex-Nazi scientist Dr. Storm. Along the way, Jason meets Judy, also on her way to Brittlehouse Manor to visit her aunt, who married Dr. Storm some years ago. Once they arrive, the pair realise rather quickly that something is wrong, probably because the other guests have had their brains surgically removed, or all the blood pouring from the sink, or possibly just because the creepy midget keeps telling them to brush their teeth.
A scientist working on cures for rare afflictions, such as a bone softening agent made from molds to allow him to correct the spinal deformity of his nurse, finds the physical causes of lycanthropy in wolf-man Larry Talbot and of vampirism in Count Dracula, but himself becomes afflicted with homicidal madness while exchanging blood with Dracula.