April Fool's Day is a 1986 horror written by Danilo Bach and directed by Fred Walton. A group of eight college students travels to an isolated island mansion owned by wealthy Muffy St. John (Deborah Foreman). They have plans to celebrate the end of their final year of college with a little debauchery. As the students settle into the mansion it quickly becomes obvious that more than one on them has a liking for practical jokes. Muffy stands out as a leading jokester, subjecting her guests to a stream of relatively harmless pranks. After dinner the group members retire to their rooms where they each are unnerved to discover more gags. However, these gags are different, they are personal, each hinting at a deep and often dark secret. The next day people start to go missing, as the number whittle down the survivors wonder if a murderer is on the loose, or are they being subjected to a cruel hoax.