Two young delinquents run away from a reformatory, across France with a front-wheel drive (Citroën) and live on thefts made here and there in a very crazy way...the police are on their heels, love for one of them is on their way, but so is the drama.

Julien, the son of a minister has just married Birgitt, a Swede she met during her holidays on the French Riviera. She was recovering, having come to rest with Julien's father, a friend of her family. During the wedding cocktail, Julien remembers these holidays.