Antonio, Peppino and Lucia are three brothers who live in the country near Naples. Lucia's son, Gianni, goes to Naples to study medicine, but there he knows a ballet dancer. They fall in love and, when she goes to Milan, Gianni follows her. Informed of this and afraid that their nephew will stop studying, the three Caponi brothers leave for Milan to persuade Gianni to come back and continue studying and abandon the "Malafemmina" (bad girl).
Eugene, a young nobleman, asks two penniless idlers to impersonate his noble relatives to help him marry Gemma, the daughter of an enriched cook.
Italy, mid '60s. Three guys from a poor neighbourhood try to get rich by printing fake money using the fact that one of them works as a typographer. The story unravels around their embarrassed efforts to spend the money, their little family issues and ends with a surprise.
