Alex Berthier would love to be a famous songwriter. Meanwhile, he has to cope with unemployment, a witty 12 years old son and a rich and cute heiress who tries to help Alex as much as he tries to escape her: she brings nothing but trouble ! Fortunately, luck will strike again.

A particularly unlucky man meets a beautiful young woman, daughter of a rich businessman. This one, pursued by blackmailers, is going to take him along in her galleys.