A mysterious woman takes her daughter on vacation after they've been separated for several months. There, she meets some of the richest and most eccentric people, who are hiding just as much as she is.

After having a fight with his girl friend, Marc follows her to Rome to try and win her back. On the train he meets a girl who is on her way to stay with her uncle. He gives her a lift to her uncle's, but they discover he has gone to South America. So as she has nowhere else to go, she stays with Marc and his cousin, which inevitably leads to romance.

Based on the story of real life Sardinian bandit Graziano Mesina.

Music, ballet, folk dances and mime eliciting the spirit of Naples across the ages are loosely tied together by the comedic wanderings and exploits of the Esposito family.