Gangster Joe Castagneto is declared undesirable by the U.S. government and returns to Naples where, under a special surveillance, he will have to deal with the hard-working and smart Police Commissioner Gennaro Di Sapio.
Broke, and armed only with his sense of humor, middle-aged Gianni lives with his mother in their old apartment. The debts are mounting, but if Gianni looks after the building manager's mother during the Ferragosto, a mid-August holiday, all will be forgiven.