Jean Vernet, an unselfish banker, feels fine : he has a charming mistress, Jacqueline ; a godson, Fernand, that he took in when he was a child and that he has brought up and cherished ever since ; a faithful friend, Lamblin ; and an adorable dog. But things are not so rosy as they look. Adrienne, Jean's sister, hates Jacqueline and is prepared to do everything to separate the couple. Worse, it looks as though Fernand has betrayed his godfather by sleeping with Jacqueline. To know more about those around him, Jean, a modern Volpone, decides to fake deafness.
| Actor | Role |
|---|---|
 RaimuJean Vernet | Jean Vernet |
 André AlermeVictor | Victor |
 Jacqueline DelubacJacqueline Diel | Jacqueline Diel |
 Jean MercantonFernand | Fernand |
 Gabrielle DorziatAdrienne | Adrienne |
 TramelLamblin, the cashier | Lamblin, the cashier |
| SSuzanne DehellyMadame Lamblin | Madame Lamblin |
 Jean TissierLeduc, the filmmaker | Leduc, the filmmaker |
| RRobert SellerAuguste | Auguste |
 Nicolas AmatoHead waiter | Head waiter |
 Jacques HenleyNot listed | Not listed |
 Yvette LebonGracieuse | Gracieuse |
 Paul EscoffierNot listed | Not listed |
 René GéninSpecialist | Specialist |
 André NumèsNot listed | Not listed |
| MMichele OlivierDeaf lady | Deaf lady |
 Georges PaulaisSpecialist | Specialist |
| LLydie ValloisNot listed | Not listed |
 Georges Bever(uncredited) | (uncredited) |
 Léonce CorneDetective Ernest Duflaire (uncredited) | Detective Ernest Duflaire (uncredited) |
 Palmyre LevasseurEmilie, the cook (uncredited) | Emilie, the cook (uncredited) |
 Robert RollisTire delivery man (uncredited) | Tire delivery man (uncredited) |