After Dr. Bill Harford's wife, Alice, admits to having sexual fantasies about a man she met, Bill becomes obsessed with having a sexual encounter. He discovers an underground sexual group and attends one of their meetings -- and quickly discovers that he is in over his head.

Dr. Eric Vornoff, with the help of his mute assistant Lobo, captures twelve men for a grisly experiment; His goal to turn them into supermen using atomic energy. Reporter Janet Lawton, fiancée of the local lieutenant, vows to investigate Vornoff's supposedly haunted house.

A historic Hollywood hotel houses a supernatural evil. It's been subdued for decades, but when renovations start, a series of murders take place.

When his brother disappears, a man visits the remote country house where he was last seen. While the host seems outwardly friendly and his niece more demonstrably so, there's a feeling of menace in the air with the overhanging legend of Lavinia Morley, the Black Witch of Greymarsh.

A detective investigating kidnapping case discovers the victim, who may be a zombie.

A young man and his girlfriend move into the man's old mansion home, where he becomes possessed by a need to control ancient demons.

After Lord Archibald Marion is brutally murdered by an unknown assailant, his bitter and feuding family members gather for a reading of the will, setting into motion an increasingly chilling series of deaths when their arrival is marked by a second grisly killing.

A psychiatrist treats a woman who is convinced that she turns into a killer leopard because of a family curse.

Posing as a hip medium, a bloodthirsty old-world undead gent attracts young lovelies to his mansion by holding séances in modern-day Los Angeles.

Ten years after the death of millionaire Cyrus Norman, his will is to be read out to his six relatives, including Joyce Norman and Wally Campbell. Organized by Norman's lawyer, Crosby, the six meet at Norman's eerie New Orleans Gothic mansion. During the reading, the superstitious housekeeper declares that someone will be dead by midnight. Wally fears for Joyce when she is declared the sole inheritor, but all are alarmed when Crosby turns up dead.

A woman trapped in a home elevator is terrorized by a group of vicious hoodlums.

Mystery writer Cornelia Van Gorder has rented a country house called "The Oaks", which not long ago was the scene of some murders committed by a strange and violent criminal known as "The Bat". Meanwhile, the house's owner, bank president John Fleming, has recently embezzled one million dollars in securities and has hidden the proceeds in the house, but is killed before he can retrieve it.