Bob, a student, is very emotionally close to his mother Suzanne. He is alarmed when she seems about to begin a relationship with a novelist, regarding it as a betrayal.

Aimé Clariond
The novelist Maurice Fleurville

Charles Bouillaud
The teacher
Monique Darritz

Jacqueline Delubac
Suzanne

Gérard Néry
Bob

Jean Diéner
Philosophy teacher

Paul Faivre
First-year teacher

Jacques Famery
René

Louis Florencie
Principal
Guy Loriquet
Ménard

Jacques Louvigny
Uncle Victor

Robert Moor

Michel Roux
Christiane Sertilange
Mado

Madeleine Suffel
Louise, chambermaid