The Milanese Luigi Pizzigoni, photographer, and the Neapolitan barber Peppino Avallone, resident in Milan, are opponents in the sports field. The first is a proud Inter supporter, while the second is from Napoli.
Sunday is the only day off that house maids use to date the young men who cross their paths: doormen, soldiers, sailors, timid virgins and lurid husbands, or even a doctor.
The daughter of Signor Carloni is about to take her first communion. A problem arises when the dressmaker spends too much time working on the girl's communion frock.
Carlo wins some money and decides to go to Rome to celebrate, but he gets his money stolen on the train. He tries to find a friend of his for a loan. Unfortunately, he is at his wedding at the church. When Carlo goes there he met his runaway bride...
A young French girl, Yvonne, having won a competition, goes to Capri for a short break. There she meets Baron Vanvutelli, an old-fashioned old man, Mario, a Roman student, who came to spend the Sunday at Capri, along with two friends, Renato and Julius.
