Julietta Valendor is in love with lawyer André Landrecourt. He is unaware of her feelings. He puts her up one day when he has his fiancée, Rosie, staying with him... Based on a novel of Louise de Vilmorin.

Jean Maraisas André Landrecourt
Dany Robinas Julietta Valendor
Jeanne Moreauas Rosie Facibey
Nicole Bergeras Martine Valendor
Bernard Lancretas Hector d'Alpon, le prince d'Alpen
Denise Greyas Mme Valender - la mère de Julietta et Martine
François Jouxas Le commissaire
Georges Chamaratas Arthur, l'intendant
Henri Alekan