Jean-Pierre, a pianist, is also the composer of a revue he would very much like Maroni, a famous theater producer, to put on. Maroni is not interested. All he wants at the moment is to impose Violette, a pretty young singer whose career he supervises. He has her dressed up as a flower seller. When he meets her, Jean-Pierre, who does not realize that she is in disguise, falls in love with her at first sight...