Mailman Biscot decides to run the Tour de France bike race to impress a lovely swimming champion.

Mimile is a street singer and also a very inventive free rider. With his friend Georges, a musician in the same orchestra, they meet Arlette Sicleton and Lulu. Arlette is the sister of Sicleton, a sports event organizer and Lulu is the daughter of Ledoux, the supervisor in charge of tracking down free riders. After many misunderstandings, love will triumph.

A provincial ingenue leaves her mother’s tobacco shop with dreams of a life in the Parisian theater, only to become entangled in relationships with a lecherous aristocrat, his starry-eyed nephew, and an old ham actor.