Daniel Bellanger, a night-club crooner, is a basically straight,honest man. He has just married Christiane, a cashier in a Montmartre hotel and his main objective in life is to live happily with his wife and Pierrot, the son she had of a former union. Unfortunately Daniel accepts the offer of his old friend Freddy to run a gambling den. The place is frequented by a host of dubious guys, among whom a hood named Mario. The latter finds Christiane to his liking and soon shows he is prepared to do anything to take her away from Daniel, including kidnapping little Pierrot.
| Actor | Role |
|---|---|
 Danielle GodetChristiane Méry | Christiane Méry |
 Michel ArdanDaniel Bellanger | Daniel Bellanger |
 Jacques CastelotMario | Mario |
 Jacques DynamJacques | Jacques |
 Max ElloyAlexis | Alexis |
 Jean-Jacques DelboFreddy | Freddy |
 Mady BerryNot listed | Not listed |
 Béatrice ArnacRita | Rita |
 Paul BiscigliaNot listed | Not listed |
| YYvonne CarlsNot listed | Not listed |
| RRoméo CarlèsMonsieur Max | Monsieur Max |
 André ChanuNot listed | Not listed |
 Robert DalbanNot listed | Not listed |
 Lucien FrégisNot listed | Not listed |
 Jim GéraldJim | Jim |
| CClaude IvryNot listed | Not listed |
 Alix MahieuxNot listed | Not listed |
 Bernard MussonTraffic policeman | Traffic policeman |
 Jean OzenneAmerican | American |
| GGinette RollandNot listed | Not listed |