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.

Rellys
Mimile / Bimbo
Suzanne Dehelly
Arlette Sycleton / Carla

Jeannette Batti
Lulu

Jean Tissier
Sycleton

André Gabriello
Ledoux

Raymond Cordy
Béru

René Génin
Ernest

Jean-Jacques Vital
Radio reporter
Daniel Clérice
Georges

Denise Kerny
Josette Daydé
Singer

André Numès
Stunned customer

Sinoël
Elevator operator
Georges Berretrot
Speaker
Marechal
Cyclist