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.
| Actor | Role |
|---|---|
 Mario LanzaMarc Revere | Marc Revere |
 Renato RascelPepe Bonelli | Pepe Bonelli |
 Marisa AllasioRafaella Marini | Rafaella Marini |
 Peggie CastleCarol Ralston | Carol Ralston |
 Clelia MataniaBeatrice | Beatrice |
 Pippo Agusta(uncredited) | (uncredited) |
 Guido CelanoLuigi | Luigi |
 Carlo GiuffrèFranco Cellis | Franco Cellis |
 Marco TulliRomoletto | Romoletto |
| CCarlo RizzoDirector of Ulpia Club | Director of Ulpia Club |
| PPatrick CreanMr. Fante | Mr. Fante |
| AAmos DavoliCarlo | Carlo |
| LLuisa DiMeoStreet Singer | Street Singer |
| GGiorgio GandosCommissario Rugarello | Commissario Rugarello |
| AApril HennessyMrs. Stone | Mrs. Stone |