Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders.
Michael Brandon
as Roberto Tobias
Mimsy Farmer
as Nina Tobias
Jean-Pierre Marielle
as Gianni Arrosio
Aldo Bufi Landi
as Pathologist
Calisto Calisti
as Carlo Marosi
Marisa Fabbri
as Amelia, the Maid
Oreste Lionello
as The Professor
Fabrizio Moroni
as Mirko
Corrado Olmi
as Porter
Stefano Satta Flores
as Andrea
Laura Troschel
as Maria
Francine Racette
as Dalia