The Thing That Couldn't Die (1958)

American professor John Holden arrives in London for a conference on parapsychology only to discover that the colleague he was supposed to meet was killed in a freak accident the day before. It turns out that the deceased had been investigating a cult lead by Dr. Julian Karswell. Though a skeptic, Holden is suspicious of the devil-worshiping Karswell. Following a trail of mysterious manuscripts, Holden enters a world that makes him question his faith in science.

Edinburgh surgeon Dr. Robert Knox requires cadavers for his research into the functioning of the human body; local ne'er-do-wells Burke and Hare find ways to provide him with fresh specimens...

A wealthy landowner living in Haiti convinces a sorcerer to lure the woman he has fallen for away from her fiancé. The madman later betrays their agreement by keeping the woman for himself…as a zombie.

Two couples vacationing together in an R.V. from Texas to Colorado are terrorized after they witness a murder during a Satanic ritual.

A boy tries to stop aliens that have taken over his town and are brainwashing its inhabitants.

In 1880, Sir Robert Cargrave, a London physician known for his experimental work in paralysis treatment, is summoned to Gorslava by the mysterious Baron Sardonicus—who is now married to Cargrave's former wife, Maude—to treat his disfigurement. When Cargrave arrives, he finds the masked baron is a cruel sadist who has threatened to harm Maude if he is not successfully cured.

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

Carpathian Count Alucard is invited to the U.S. by a young heiress. Her boyfriend and local officials are suspicious of the newcomer, who is interested in the "virile" soil of the new world.

Dr. Frankenstein and his monster both turn out to be alive after being attacked by an angry mob. The now-chastened scientist attempts to escape his past, but a former mentor forces him to assist with the creation of a new creature.

A woman is haunted by recurring nightmares, which seem to be instigated by her late husband who supposedly was killed in a fire.