When a wealthy marquis is killed, his family heirs are the chief suspects — until one by one they're targeted by what seems to be the same murderer. Totò, Raimondo Vianello, Nadine Sanders, Luigi Pavese, Mario Castellani, Peppino De Martino, Giulio Marchetti, Franco Giacobini, Pietro De Vico, Mimmo Poli Added on Netflix 2021-04-21.