Guy Carbonnel, a rich industrialist, has more eyes for rugby than for his wife Hélène. René Rivals, his long-time pal, takes advantage of it to court her but Guy is becoming suspicious so René has to find a way to deflect his friend's suspicion. He finally has an idea: he asks Lilian, a circus acrobat, to pose as his mistress. Lilian accepts and they embark on a series of eventful moments.
| Actor | Role |
|---|---|
 Danielle DarrieuxLilian Rander | Lilian Rander |
 Lise DelamareHélène | Hélène |
 Bernard LancretRené Rivals | René Rivals |
 Maurice BaquetFirmin | Firmin |
 Monique JoyceLætitia | Lætitia |
 Huguette VivierMarina | Marina |
 Gabrielle FontanMadame Carbonnel | Madame Carbonnel |
 André AlermeRander | Rander |
 Jacques DumesnilGuy Carbonnel | Guy Carbonnel |
 Guillaume de SaxEsquirol | Esquirol |
 Michel DuranMazios | Mazios |
 André GabrielloBailiff | Bailiff |
 Charles BlavetteCasimir | Casimir |
 Marcel MaupiBellemain | Bellemain |
| PPaul BargeMilou (uncredited) | Milou (uncredited) |
| JJean-Marie BoyerPaulo (uncredited) | Paulo (uncredited) |
| PPierre BruléChico (uncredited) | Chico (uncredited) |
| dd'AndréaPrat (uncredited) | Prat (uncredited) |
 Luce Fabiole(uncredited) | (uncredited) |
 Georges GossetLavielle (uncredited) | Lavielle (uncredited) |
 Albert MalbertCoachman (uncredited) | Coachman (uncredited) |
| RRambauvillePascaud (uncredited) | Pascaud (uncredited) |
| AAlbert RieuxRigaux (uncredited) | Rigaux (uncredited) |
 Guy SlouxSanitier (uncredited) | Sanitier (uncredited) |