The French ballet girl Janine, a gifted tap-dancer, dreams of a musical career in Paris. But first she wants to take revenge on Count RenΓ© who stood up her best friend Charlotte. Janine wants him to fall in love with her and disappoint him afterwards. At a masked ball at which Janine pretends to be a Marquise they have their first meeting. Janine is very disappointed in the "good gentleman", but she does not suspect that this gentleman also makes a pretence. The man whom she holds to be count RenΓ© is Pierre, a composer and pianist.