Mr. and Mrs. Noblet run a boarding house on the French Riviera. One day, they are led by circumstances to welcome a little boy Pierre, whose father is in jail, into their home. Which makes Louise Noblet all the happier as she can't have children herself. But, after a while, Pierre's father is released from prison and reclaims his son... Time passes and Pierre, now a young adult, lives in Paris more or less on the wrong side of the law. He has a mistress, Nelly, who does not say no to other men's money... Louise, who still loves Pierre as her own son, wants only one thing - to help him get by.
| Actor | Role |
|---|---|
 Françoise RosayLouise Noblet | Louise Noblet |
 Paul BernardPierre Brabant | Pierre Brabant |
 Lise DelamareNelly | Nelly |
 ArlettyKid Parasol | Kid Parasol |
 Jean-MaxRomani | Romani |
| PPaul AzaïsCarlo | Carlo |
 Raymond CordyMorel | Morel |
| IIla MecséryVilma | Vilma |
 Pierre LabryParisian hotelier | Parisian hotelier |
 Eddy DebrayPierre's father | Pierre's father |
 Jenny BurnayMaid of the Mimosas guesthouse | Maid of the Mimosas guesthouse |
| GGeorges K. BendaNot listed | Not listed |
 Gustave HamiltonNot listed | Not listed |
 Harry NestorNot listed | Not listed |
 Maurice LagrenéeRegular at the bar | Regular at the bar |
| MMadame SylviacCountess | Countess |
 André AlermeGaston Noblet | Gaston Noblet |
| AAndrée CantiNot listed | Not listed |
 Héléna MansonLittle rentier | Little rentier |
 Germaine ReuverGuest at the banquet | Guest at the banquet |