In a small provincial town, the boarding-house is run by Mathilde Belin, the overindulging and over-demanding mother of Paul. When she is told by her envious sister Charlotte that her son is having a secret affair with Catherine, a salesgirl, she becomes furious and starts doing everything in her power to separate the lovebirds.

Madeleine Robinson
Mathilde Belin
Françoise Alban
Charlotte Bertier

Agnès Laurent
Catherine

Gil Vidal
Paul Belin

René Dary
L'oncle Léon Bertier

Evelyne Ker
Germaine

Maurice Sarfati
René Perrin
Liliane Maigné
Mademoiselle Bourdin
Georges Baconnet
'L'oncle' de Mademoiselle Bourdin

Robert Vattier
Monsieur Chale, un pensionnaire
Michèle Dimitri
Evelyne

Marcelle Arnold
La pâtissière Madame Rapine
Pierre Ferval
Hardouin - un joueur de billard

Charles Bayard

Jean Dunot
Le réceptionniste de l'hôtel