A young woman goes to teach at the Ravenscroft Institute, a spooky old girls' school overrun by ants and staffed by some unusual types. Spurred on by a series of horrific hallucinations, she begins to investigate the mysterious disappearances of several students.

New York City is in a panic caused by an insane murderer; Maria, a police officer is entrusted with the case; to do this, she pretends to be a prostitute. One night, she meets a possible suspect who holds her and her partner hostage.

American professor Tarl Cabot is transported via a magical ring to planet Gor, where he must help an oppressed country overthrow its evil king and his barbarian henchmen.

Sy Winter, a young idealistic American, becomes stranded high in the mountain woods. Attracted by the beautiful Tanya, he is trapped into working for her violent husband and his decrepit wheelchair-bound father. As the ominous surroundings deepen his tortured desires for Tanya, his fantasies become reality and Sy is plunged into a nightmare of murder and revenge from which he cannot escape until he faces his own tortured nightmares.