Raymonde Chandebise suspects her husband Victor-Emmanuel of cheating on her. She received a package from the hotel "Le minet galant". The package contained a pair of suspenders belonging to her husband. Her best friend, Lucienne, advises her to find out for sure and to use a stratagem. They both send him a fake, passionate letter, written by a beautiful stranger, asking him to meet her at the "Minet Galant"! But little do they know that the hotel's simpleton bellboy is a look-alike of poor Victor-Emmanuel!
| Actor | Role |
|---|---|
 Pierre MondyVictor-Emmanuel Chandebise | Victor-Emmanuel Chandebise |
 Louis de FunèsAuguste Ferraillon | Auguste Ferraillon |
 Alfred AdamDocteur Finache | Docteur Finache |
 Marthe MercadierRaymonde Chandebise | Raymonde Chandebise |
 Jacques-Henri DuvalRomain Tournel | Romain Tournel |
 Albert RémyCamille Chandebise | Camille Chandebise |
 Pascal MazzottiÉtienne | Étienne |
 Jess HahnRugby | Rugby |
 Yvonne GaudeauYvonne Homenidès | Yvonne Homenidès |
 Suzanne DantèsOlympe Ferraillon | Olympe Ferraillon |
 Robert ManuelCarlos Homenidès de Histangua | Carlos Homenidès de Histangua |
 Solange CertainAntoinette | Antoinette |
| JJeanine SudreauEugénie | Eugénie |