The guitarist Moncho, singer Roberto and their impresario, arrive in Paris to find the fortune and the celebrity. They live in Montmartre in a pension that receives an impressive sampling of circus artists and music halls. They meet Maria-Rosa with whom they make a number, and this is glory.
On a Marseille film set, a street urchin who has been hired as an actor is suspected when both a star and a baroness are robbed.With the help of the boy's neer do well friend the real crooks are tracked down.
