Kohlman, the attorney for the Fournil bank, diverts money from the institution. To hide his malpractices, he imagines to remove the director, the young and overconfident Clement Fournil, during a cruise at sea on the yacht Emile Frechisse.
| Actor | Role |
|---|---|
 Claude DauphinClément Fournil | Clément Fournil |
 Sophie DesmaretsMarianne Fabre | Marianne Fabre |
 Pierre BrasseurEmile Fréchisse | Emile Fréchisse |
 Noël RoquevertKohlmann | Kohlmann |
 Albert RémyAlbert | Albert |
 Edmond ArdissonAn inspector | An inspector |
 René BerthierFleuret | Fleuret |
 Charles CamusA shareholder | A shareholder |
 Henri CrémieuxThe commissioner | The commissioner |
 Joé DavrayNot listed | Not listed |
 Danièle DelormeNot listed | Not listed |
| HHuguette DorianeNot listed | Not listed |
 Émile DrainA shareholder | A shareholder |
| RRichard FlageyNot listed | Not listed |
| LLucien HectorA shareholder | A shareholder |
| CColette MareuilNot listed | Not listed |
 Renaud MaryThe deputy Director | The deputy Director |
 Albert MichelThe bosun | The bosun |
 Philippe OliveNot listed | Not listed |
| PPierre OlivierThe mayor | The mayor |
 Maurice RégameyNot listed | Not listed |
| RRaymond SoukoffNot listed | Not listed |
 Louis de FunèsThe cook (uncredited) | The cook (uncredited) |