Professor Bock is to inaugurate the museum, the construction of which was donated by a generous patron who remains anonymous. He learns that it is his brother's wife, a former dancer, and whom he hates. But her daughter falls in love with Jim, the son of the ex-dancer, and everything will work out.
| Actor | Role |
|---|---|
 Anny OndraAnny | Anny |
 Lucien BarouxProf. Bock | Prof. Bock |
 Marcelle PrainceMiss Flora | Miss Flora |
 Jean-Pierre AumontJim | Jim |
| RRachel LaunayMrs. Bock | Mrs. Bock |
 Henri KernyThe inspector | The inspector |
 Charles LamyProf. Petou | Prof. Petou |