The daughter of an industrialist takes an interest in the workers and tries to improve their lot. She avoids a strike, and falls in love with an engineer.
| Actor | Role |
|---|---|
 Pierre BrasseurPierre Mougins | Pierre Mougins |
 Madeleine RobinsonSimone Maravon | Simone Maravon |
 Raymond AimosCaillat | Caillat |
| BBlanche BernisMadame Lurvin | Madame Lurvin |
| CCharles BurguetMaravon | Maravon |
 Jeanne Fusier-GirMother Victor | Mother Victor |
| GGisèle GirePaulette Lurvin | Paulette Lurvin |
 Jacques GrétillatGonfaron | Gonfaron |
| HHuguette HeftiMaid | Maid |
| PPaulette HouryJulie | Julie |
| GGeorges LaCroixEmployee | Employee |
| EElise MailléTypist | Typist |
| GGina ManèsIrma | Irma |
 Jeanne Marie-LaurentMadame Mougins | Madame Mougins |
 Michel NastorgDuvernet | Duvernet |
 Jacques VarennesChassigny | Chassigny |
 Victor VinaBenoit | Benoit |
 Louis VonellyLurvin | Lurvin |
| RRaymonde Devarennes(uncredited) | (uncredited) |
 Marcel Pérès(uncredited) | (uncredited) |
| PPierre de Ramey(uncredited) | (uncredited) |
 Eugène Stuber(uncredited) | (uncredited) |