As a favor to his grandmother, singer Rudy Hirigoyen agrees to sing incognito, under the name Romano, in the nightclub his cousin Gustave has just opened in a small seaside resort. The staff and musicians are students camping out in the pine forest near "L'Auberge Fleurie". Grandma has rented the apartment above the club to summer guests: Commandant Portafaux and his wife.
| Actor | Role |
|---|---|
 Rudy HirigoyenRudy Etcheverry | Rudy Etcheverry |
 Geneviève KervineJosée | Josée |
 Noël RoquevertMr. Portafaux | Mr. Portafaux |
 Jeannette BattiGloria Royal | Gloria Royal |
 Jane MarkenMrs. Portafaux | Mrs. Portafaux |
 Fred PasqualiNot listed | Not listed |
 Nicole BesnardNot listed | Not listed |
 Michel FlammeNot listed | Not listed |
 Jim GéraldNot listed | Not listed |
| FFrançoise BrilleNot listed | Not listed |
| MMichel LesageNot listed | Not listed |
| JJacqueline HeurtebiseNot listed | Not listed |
| BBernard RevonNot listed | Not listed |
| FFrancine DréanNot listed | Not listed |
 Anne-Marie CoffinetNot listed | Not listed |
 Jacques DynamGustave | Gustave |
 Denise GreyGrandmother | Grandmother |