Édouard and Félix, two inseparable friends, live off the times and do odd jobs, sharing a tiny apartment in Montmartre with Laurence, Félix's sister, a model in a fashion house who alone supports the trio.

Melun, on 1959. On the return to an auction, a young and attractive widow, Elisabeth Vernon, finds at her home(with her) a wounded escapee of prison. The fugitive, Daniel Morane, is a handsome boy and justifies himself crimes(murders) of which we accuse it. The young woman is allowed convince, seduce, feels sorry, and agrees to help him(it). But during their escape(mare), the doubt seizes her …