April Fool's Day movie (1986) -Deborah Foreman, Amy Steel, Ken Olandt, Deborah Goodrich, Thomas F. Wilson, and Leah Pinsent

April Fool's Day movie trailer (1986) - Plot synopsis: Nine college students staying at a friend's remote island mansion begin to fall victim to an unseen murderer over the April Fool's Day weekend.
Director: Fred Walton
Writer: Danilo Bach
Cast: Deborah Foreman, Amy Steel, Ken Olandt, Deborah Goodrich, Thomas F. Wilson, and Leah Pinsent