I Have Been Here Before (1982)

A weekend get-away for two lovers turns into a nightmare of psychological mind games when their infidelity is discovered.

Convinced that his fiancee is cheating on him, a man follows her to a hotel and calls his best friend to help him avoid a calamity.

Dan Merrick comes out from a shattering car accident with amnesia. He finds that he is married to Judith who is trying to help him start his life again. He keeps getting flashbacks about events and places that he can't remember. He meets pet shop owner and part time private detective Gus Klein who has supposedly done some work for him prior to the accident. Klein helps Merrick to find out more...

A man awakens from a coma, only to discover that someone has taken on his identity and that no one, (not even his wife), believes him. With the help of a young woman, he sets out to prove who he is.

Prot is a patient at a mental hospital who claims to be from a far away planet. His psychiatrist tries to help him, only to begin to doubt his own explanations.

A small-town doctor learns that the population of his community is being replaced by emotionless alien duplicates.

Dr. Nookey is disgraced and sent to a remote island hospital. He is given a secret slimming potion by a member of staff, Gladstone Screwer, and he flies back to England to fame and fortune. But others want to cash in on his good fortunes, and some just want him brought down a peg or two.

A federal agent searches for a potential killer among the bizarre residents of a dilapidated Los Angeles hotel.

A recently widowed detective still grieving over his wife's death discovers a shocking connection between himself and the suspects in a serial killing spree linked to the Four Horsemen of the Apocalypse.

The wife of an American doctor suddenly vanishes in Paris. To find her, he navigates a puzzling web of language, locale, laissez-faire cops, triplicate-form filling bureaucrats and a defiant, mysterious waif who knows more than she tells.