Innocent, voluptuous Lisa's horrific travails begin when she sees a wax mannequin in her own image. She then sees a sinister fellow, whom she knows is the devil, hanging around nearby and runs for her life. Unfortunately, she ends up hiding in the mansion of a typical creepshow psycho family who prefer spending their evenings making love to everything and every one that moves, or doesn't move in the case of one necrophiliac. If that weren't creepy enough, Lisa gets a luck at the butler and realizes that he is old Satan himself. Separate feature film for which Mario Bava and Alfred Leone later shot new footage and edited into Casa Dell' Exorcismo.