While still behind bars, a crook manages several schemes including one that almost gets his penniless young lawyer into trouble.The crook's mistress, married to a rich man, then becomes attracted to the lawyer.

In Paris, at the Foire du Trône, the showman Titin from Martigues spins the perfect love with the pretty Yvette, which arouses the jealousy of his rival Dix-de-Der who will cause his downfall. Without this affecting his Provençal joviality, Titin will try his hand at various odd jobs without ceasing to push the song.