In an isolated villa, Davide Lugani lives with his wife, Carlo, his brother, and their secretary Paolo. Wheelchair-bound Carlo is blind and mute, but his abnormal sensitivity allows him to predict events before they happen. Davide dies of a suspected heart attack and Carlo's nurse is shot dead. The police suspect Davide's widow as well as Paolo, who seems to be her lover. Just as the pair are about to be arrested, there is a twist...
Paolo Morand
Anna Lugani
Elisabeth Buckner
Davide Lugani
Commissioner Perrotti
Dr. Bowen
Christine
The sergeant
Picchiatore Grasso
The woman who sends the anonymous letter