The honeymoon in Italy of Guillaume and Eugénie de Puycharmois escorted by friend Sainfoin, a second-hand driver. Sainfoin's humor displeases Eugenie. Guillaume takes the wheel in such a way that it is necessary to hire a "driver", Yolande. Jealous, Eugenie asks Sainfoin to conquer Yolande. In the working car, two happy couples drive through the Italian landscapes.
| Actor | Role |
|---|---|
 Pierre BlancharSainfoin | Sainfoin |
 Sophie DesmaretsEugénie | Eugénie |
 Alfred AdamGuillaume de Puycharmois | Guillaume de Puycharmois |
 Jean HébeyInnkeeper | Innkeeper |
 Jacqueline PorelYolande | Yolande |
 Henri CharrettFather Machin | Father Machin |
 Denise GreyEugénie's mother | Eugénie's mother |
| EEugène FrouhinsPeasant | Peasant |
 Louis de FunèsGuide | Guide |
 Albert MichelBoy | Boy |
 Nicolas AmatoDoctor | Doctor |
 Gil DelamareNot listed | Not listed |
| LLéonceNot listed | Not listed |
 CapucineNot listed | Not listed |