A shy, lonely American girl marries a charming man she meets while on vacation in England, unaware that he has sinister plans for her.

With the exception of the poor central heating system, Ray and Penny Burns' newly-purchased country house seems ideal. While repairing the pipes, a handyman digs up the cellar and uncovers the body of the home's previous owner who was murdered twenty years earlier. A séance held in the home reveals something very disturbing.

A young woman and her friend rent a room in an old dark mansion. Soon they become aware of the fact that the other "renters" are a very strange lot, and that there are some very odd goings-on in the house that seem to be centered in the attic.

An American visiting London becomes confused about the facts of his life particularly related to a mysterious Thersa.

A serial killer escapes from the asylum to which he has been confined. He picks a seemingly innocent woman as his next victim, but soon it looks like she's not quite as innocent as he thought.

While suffering from amnesia, Betty Drew stumbles into a police station; unable to identify herself but admitting to having just committed murder. Her elaborate, yet muddled, story is dismissed when no body is found. However, one police detective, Tom Patterson, wants to investigate further.