One night, in the middle of summer. Serge does not sleep, leaning on his window. He looks at the Paris sky. Fabrice, a little boy, hangs on the roofs of buildings. Fabrice is not alone, they are four boys to improvise young burglars. Balthazar at the age of Fabrice. Nicolas and Jeannot are between childhood and adolescence. There is a bard, the "Blue Night", held by Camille and Anita. Nicolas and Jeannot love them without telling them, and it is to them that they return the spoils of their burglary. The fate of these seven characters will be knotted dramatically.