The operetta composer Robert Ottmar is fascinated when he discovers a picture of a young lady in a newspaper. The beauty's mere countenance inspires him to write a new operetta, which is very successful. Ottmar learns that his beloved is called Gloria and is the daughter of a general manager from Nice. In order to find out whether Gloria corresponds to his ideal image in reality, he hires himself out as a valet in her father's villa - incognito, of course.
| Actor | Role |
|---|---|
 Willi ForstRobert Ottmar | Robert Ottmar |
 Magda SchneiderGloria Claassen | Gloria Claassen |
 Max GülstorffGeneraldirektor Claassen | Generaldirektor Claassen |
 Theo LingenDiener Stephan | Diener Stephan |
 Fritz OdemarBaron Nicki | Baron Nicki |
 Anton PointnerHenri Coquard | Henri Coquard |
| VVilma BekendorfZofe Lissy | Zofe Lissy |
 Olga LimburgStella Claassen | Stella Claassen |
 Trude HaefelinKatja | Katja |
 Angelo FerrariGraf Palmieri | Graf Palmieri |
 Ida PerryNot listed | Not listed |
| EErnst GronauErwin Rodenberg | Erwin Rodenberg |
| EErnst RotmundNot listed | Not listed |
| RRobert ThiemBobby | Bobby |
| IIlja LivschakoffTanzkapellmeister | Tanzkapellmeister |
| KKurt HohenbergerTrompeter | Trompeter |
 Edwin JürgensenNot listed | Not listed |
| RRichard LudwigNot listed | Not listed |