Former Countess Clair and Professor Gruber conduct occult research in castle basement of Count Victor, re-animating people to kill for them.

A group of office workers decide to have a party in the office building. Among other things, they want to have some drugs there. Their conversation on the subject is overheard by Joe Vickers, which is rather unfortunate for them, since Joe Vickers is a policeman. Even more unfortunate is the fact that Vickers is also an undead psychotic satanist, and instead of arresting them, he will make sure that nobody leaves the party alive...

After young Mary Gibson discovers that her older sister Jacqueline has disappeared, she leaves her boarding school and heads to New York City to track down her sibling. But Mary gets drawn deeper into the mystery.

After a road accident in Hungary, the American honeymooners Joan and Peter and the enigmatic Dr. Werdegast find refuge in the house of the famed architect Hjalmar Poelzig, who shares a dark past with the doctor.

A young woman is lured to Cairo, where a cult of devil worshippers wants to sacrifice her.

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 group of Satanic hippies wreak havoc on a small town where a young boy, whose sister and grandfather were victimized by them, tries to get even - with deadly results.

A rare book dealer finds himself at the heart of a string of paranormal events when he is hired to find the last two copies of a text, The Nine Gates of the Kingdom of Shadows, capable of summoning the Devil.

A down-and-out Brooklyn detective is hired to track down a singer on an odyssey that will take him through the desperate streets of Harlem, the smoke-filled jazz clubs of New Orleans, and the swamps of Louisiana and its seedy underworld of voodoo.

A psychiatrist investigates the death of one of his patients, a young heiress.

Whether Satan exists is a matter of belief. But we are certain Satanism exists. To some it's a religion. To others it's the practice of evil in the devil's name. It exists and it's flourishing.

An American family celebrates their 28-year-old daughter's pregnancy. The celebration is interrupted when a Satanic cult leader, Henrik Brandr, unexpectedly visits their ranch. Henrik offers to pay the family a large sum for ownership of their land. Jacob Richardson, the father, rejects the offer due to the priceless sentimental value of the ranch. Henrik, displeased, begins to put devastating curses on the Richardsons, trying to force them off their land - even if it means murdering them. After suffering unexplainable tragedies, the Richardsons seek help from Marybeth, a white witch high priestess. They soon discover a terrible secret about their house, revealing why their land is so valuable to the cult. They realize they must protect their house from the cult at all costs, and a violent battle between good and evil ensues.