À Paris, en 1950. Sur la voie publique, Robert, un jeune étudiant en droit, orphelin depuis la guerre, sans emploi et sans domicile, affamé est sur le point de commettre un vol lorsqu'il rencontre Gaston un camelot sympathique et surdou�...
How Robert, who does not manage to impose himself in the representation, sees his life turned upside down when he begins a career as a street vendor, which, thanks to his resourcefulness, turns out to be more and more brilliant.
