Summary: When Edgar sees his girlfriend Betty getting up close and personal with his best friend Carl, he murders Carl in a jealous rage and hides the corpse under the floor of his piano room. Comes the night, and Edgar begins to hear strange sounds coming from under the floor... (imdb)

Genre: Horror

Country: UK

Directed By: Ernest Morris

Written By: Brian Clemens, Eldon Howard

Starring: Adrienne Corri, John Martin, Laurence Payne, Dermot Walsh, Selma Vaz Dias, John Scott

More information at the Internet Movie Database