Janvier, an embittered teacher, is fed up with his colorless, monotonous life. One day he breaks away and ends up becoming a circus clown. In his new world, he meets a beautiful acrobat nicknamed Lili and grows fonder and fonder of her every day of his life. The trouble is that the lady bestows her favors to two different lovers : wealthy married man Chardeuil and good-looking but listless young Antonio. He now considers his duty to make Lili recover her dignity.
| Actor | Role |
|---|---|
 Fernand LedouxProfesseur Janvier | Professeur Janvier |
 AnnabellaFlorence aka "Lili" | Florence aka "Lili" |
 Michel AuclairMario | Mario |
 Louis SalouChardeuil | Chardeuil |
 Line NoroGermaine | Germaine |
| MMary MorganMrs. Chardeuil | Mrs. Chardeuil |
 Jeannette BattiJanette | Janette |
 Jeanne LionMémé | Mémé |
 Colette RipertMs. Chardeuil | Ms. Chardeuil |
| MMonique ArthurThe maid | The maid |
 Gaston ModotThe huckster | The huckster |
 Roland ArmontelRobert Ariani | Robert Ariani |
 Marcel AndréThe principal | The principal |
 Guy FavièresThe inspector | The inspector |
 Marcel MelracA track boy | A track boy |
| PPaul DelonThe director | The director |
 Philippe LemaireChardeuil son | Chardeuil son |
 Julien MaffreA track boy | A track boy |
 Albert MalbertThe cafe owner | The cafe owner |
| LLes MascarillesNot listed | Not listed |