Baron Fefé Cefalù is a Sicilian nobleman bored of life and of wife Rosalia: he falls in love with young and beautiful cousin Angela, who spends summers in the same palace. Since divorce is impossible in Italy in the 1960s, he decides to kill the wife, knowing that sentence would be very light if he proved that he committed murder for a matter of honour, i.e. when he found the wife together with another man. Therefore, he starts finding a lover for Rosalia, using Carmelo Patané, a painter well-known by her.