Milan, Nowadays: Fernando, son of Ugo Piazza, is a brilliant criminal defense lawyer whose mother, Nelly, has done everything in her power to raise him different from his father, a deplorable gangster.
The Ciraulo family lives in the miserable district of Palermo called "Zen". When one of their children dies in a shootout between mafia gangsters they receive compensation and buy a luxury black Volvo. Things go wrong when Trancredi, another son, takes the car out and damages the car door.
