Devils of Darkness (1965)

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.

Wisecracking reporter Carl Kolchak investigates a string of murders in Las Vegas and suspects the culprit is a vampire. His editor thinks he's crazy and the police think he's a nuisance, so Kolchak takes matters into his own hands.

In the shadow of Castle Dracula, the Prince of Darkness is revived by blood trickling from the head-wound of an unconscious priest attempting exorcism. And once more fear and terror strikes Transylvania as the undead Prince of Darkness stalks the village of Keineneburg to ensnare victims and satisfy his evil thirst.

In Whitewood, Massachusetts, a presumed witch places a curse on the town before she is burned at the stake. 300 years later, a college student arrives and checks into the mysterious Raven's Inn to research the town's history with witchcraft.

A frustrated, angry teenage girl awakens something in the woods when she naively performs an occult ritual to invoke a witch to kill her mother.

A documentary about conspiracy theories takes a horrific turn after the filmmakers uncover an ancient and dangerous secret society.

A countess from Transylvania seeks a psychiatrist’s help to cure her vampiric cravings.

A man with partial blindness and a young pregnant police officer must work together to escape a deadly virus that has spread across Grey County.

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 man and wife are terrorized by Mad Scientist Dr. Callistratus who was executed but has returned to life with a heart transplant. Along with his crippled assistant Carl, the 'anemic' Mad Scientist, believed to be a vampire, conducts blood deficiency research on the inmates of a prison hospital for the criminally insane to sustain his return to life.