Commissario Petrucci
El inspector Vanni tras seguir la pista del famoso delincuente francés apodado "El ángel negro" en un tiroteo, mata a su hermano, creando una inesperada venganza donde asesinara a la esposa del inspector Vanni. Ademas con una serie de contactos, roba unos cientos de kilos de dinamita y se le unen unos cuantos peligrosos delincuentes mas.
Jo
When Marialé is a little girl, she sees her father murder the two lovers and then shoot himself in the head. About 30 years later, she lives in a mansion and has mental problems. She invites a number of friends and one by one they become murdered.
Walter and Paola, presenter and godmother of the sixth Cantagiro, are involved in a misunderstanding: to dismiss a suitor, the presenter pretends to be married to Quattrini.
Professor
