A scientific team in Mexico discover a pool of unusual baby "octopus-like" specimens. Gathering a few for analysis back at the lab, it is soon discovered that the critters belong to a gangly six-foot half man/half octopus-like creature, that's pretty angry and wants her 'babies' returned…
A series of murders occur that mirror those committed by the Whitechapel Ripper. Through his experiments with psychoanalysis Dr Pritchard discovers a deadly violence in one of his young female patients. As he delves into the recesses of her mind he uncovers that Anna is possessed by her dead father's spirit, willing her to commit acts of gruesome savagery over which she has no control. But the most chilling revelation of all is the identity of her father: Jack the Ripper himself.
A married couple accept the invitation of mysterious vixen Diane LeFanu to visit her in her secluded desert estate. Tensions arise when the couple, unaware at first that Diane is a centuries-old vampire, realize that they are both objects of the pale temptress' seductions.
While dabbling in Satanism, Count Karstein resurrects Mircalla Karnstein who initiates him into vampirism. As a rash of deaths afflicts the village, Gustav the head of Puritan group leads his men to seek out and destroy the pestilence. One of his twin nieces has become inflicted with the witchcraft but Gustav's zeal and venom has trapped the innocent Maria, threatening her with a tortuous execution, whilst Frieda remains free to continue her orgy of evil.
Young babysitter Amanda arrives at the Lloyd residence to spend the evening looking after their young son. Soon after the Lloyds leave, a series of frightening occurrences in the gloomy old house have Amanda's nerves on edge. The real terror begins, however, when the child's biological father appears after recently escaping from a nearby mental institution.
An elderly heiress is killed by her husband who wants control of her fortunes. What ensues is an all-out murder spree as relatives and friends attempt to reduce the inheritance playing field, complicated by some teenagers who decide to camp out in a dilapidated building on the estate.
A murderous and decrepit old woman resides on a California walnut farm with her family. On a whim, a traveler named Jodie makes a brief side trip to the farm, where he meets and falls in love with Melissa, the proverbial farmer's daughter. Jodie and Melissa grow closer as Melissa begins to reveal the strange, dark history of her family.
A rich, mentally-unstable man with a penchant for playing deadly S&M games with women who resemble his dead wife, sparks off a chain of bizarre events after getting remarried.
A journalist finds himself on the trail of a murderer who's been targeting people around him, while the police are considering him a suspect in their investigation.
A biker gang visits a monastery where they encounter black-robed monks engaged in worshipping Satan. When the monks try to persuade one of the female bikers, Helen, to become a satanic sacrifice the bikers smash up the monastery and leave. The monks have the last laugh, though, as Helen, as a result of the satanic rituals, is now possessed and at night changes into a werewolf, with dire results for the biker gang.
Recently married, Quentin and Tracy Collins have just moved into Collinwood, a New England estate that has long been in the Collins family and which Quentin has just inherited. They soon find themselves plagued by spirits of past residents.
A social misfit, Willard is made fun of by his co-workers, and squeezed out of the company started by his deceased father by his boss. His only friends are a couple of rats he raised at home, Ben and Socrates. However, when one of them is killed at work, he goes on a rampage using his rats to attack those who have been tormenting him.
Two Egyptologists, Professor Fuchs and Corbeck, are instrumental in unleashing unmitigated horror by bringing back to England the mummified body of Tara, the Egyptian Queen of Darkness. Fuchs’s daughter becomes involved in a series of macabre and terrifying incidents, powerless against the forces of darkness, directed by Corbeck, that are taking possession of her body and soul to fulfill the ancient prophesy that Queen Tara will be resurrected to continue her reign of unspeakable evil.
An American actress inherits a castle in Transylvania. What she doesn't know is that her ancestor, the Baroness Catali, was in actuality a vampire countess, and emerges from her tomb to ravage the nearby village and Catholic seminary.