Hélène has an affair with Alain for ten years, but does not want to divorce her husband. Alain receives one letter from a girl Michelle one day. Hélène, who is very jealous, receives that letter by chance and interprets it incorrectly.
| Actor | Role |
|---|---|
 AnnabellaHélène Fontenay | Hélène Fontenay |
 Georges MarchalAlain Fontenay | Alain Fontenay |
 Jean DebucourtCount of Cravant | Count of Cravant |
 Jeanne MoreauMichèle | Michèle |
 Suzanne FlonSimone | Simone |
 Jean-Pierre KérienPaul | Paul |
 France AsselinLlittle woman | Llittle woman |
 Charles BayardNot listed | Not listed |
 Robert BlomeNot listed | Not listed |
| RRoger BontempsGeorges | Georges |
 Yvette EtiévantLina Bell | Lina Bell |
 Luce FabioleDresser | Dresser |
 André ChanuRobert | Robert |
 Christian FourcadeNot listed | Not listed |
 Arlette MerrySewer | Sewer |
 Marcelle MonthilMaria | Maria |
| NNicole RicheNot listed | Not listed |