Raymonde Chandebise suspects her husband Victor-Emmanuel of cheating on her. Her best friend advises her to find out for sure and to use a stratagem. Both of them send him a false letter, written by a beautiful stranger, giving him an appointment at the "Minet Galant"! But they are completely unaware that the hotel's waiter, a simpleton, is a look-alike of poor Victor-Emmanuel!
| Actor | Role |
|---|---|
 Jean-Paul BelmondoVictor-Emmanuel Chandebise / Poche | Victor-Emmanuel Chandebise / Poche |
 Cristiana RéaliRaymonde Chandebise | Raymonde Chandebise |
 Pierre VernierRomain Tournel | Romain Tournel |
 Sabine HaudepinLucienne Homénides de Histangua | Lucienne Homénides de Histangua |
 Charlotte KadyLucienne Homénides de Histangua | Lucienne Homénides de Histangua |
 Antoine DuléryCarlos Homénides de Histangua | Carlos Homénides de Histangua |
 Laurent GamelonAugustin Ferraillon | Augustin Ferraillon |
 Arlette DidierOlympe Ferraillon | Olympe Ferraillon |
 Annie GrégorioEugénie | Eugénie |
 Serge BerryBaptistin | Baptistin |
 Jean-Paul BordesCamille Chandebise | Camille Chandebise |
| GGaston VacchiaDocteur Finache | Docteur Finache |
 Urbain CancelierÉtienne | Étienne |
 Brigitte ChamarandeAntoinette | Antoinette |
 Paul BandeyRugby | Rugby |