Saturday the 14th is a 1981 American comedy horror film starring real-life husband and wife Paula Prentiss and Richard Benjamin, co-written and directed by Howard R. Cohen and produced by Julie Corman.

The family has interactions with the vampire Waldemar and the would-be world-conqueror Van Helsing, who each want to acquire the book.

John and Mary Hyatt, together with daughter Debbie and son Billy move in, but Waldemar, a vampire, and Yolanda, his wife, want desperately to get into the rundown house because it contains a book of evil.

Strange things start happening: eyes appear in John's coffee, sandwiches are mysteriously eaten, the television tunes into The Twilight Zone only, dirt is found in Mary's bed, dishes get done by themselves, neighbors disappear.

Mary keeps hearing noises at night, which she thinks are made by owls, but are actually the sounds of Waldemar in bat form.

Julie Corman recalls Paul Prentiss and Richard Benjamin "had very individual ideas about their characters.

"[7] Despite being set in the fictional town of Eerie, Pennsylvania, the Spooky House Exteriors and Interiors, in which the Hyatt Family inherited from their Late Uncle by mistake in the film, is located in the University of Southern California district in Los Angeles at 1190 West Adams Boulevard.

The film was given a limited release theatrically in the United States by New World Pictures on August 14, 1981, opening in cities such as Des Moines, Iowa[8] and Alexandria, Louisiana.

"[7] Variety called the film "a pathetic farce which will seem frail even on TV, for which it should probably have been made in the first place...As usual with recent New World productions, the special effects and, in this case, the monster get-ups are actually pretty good, but they exist in a vacuum of inspiration as to what to do with them".

[5] Tom Shales of The Washington Post wrote that the film "merely resurrects a passel of haunted-house wheezes so antique that even the Bowery Boys would be driven to groans by them".

[4] Linda Gross of the Los Angeles Times wrote that it was "not a laugh riot, but a silly spoof of horror movies whose appeal probably will be limited to younger people who haven't been exposed to making fun of Dracula for as long as the rest of us".