Two men pull off a daring daylight payroll heist in Milan, making a fast getaway. One is returning to France after years in hiding, needing money to start fresh with his family.
Picked up by a beautiful motorist, jobless hitchhiker Pierre (Hossein) is subsequently romanced by the girl. Immediately thereafter, however, she dumps him, attempting to run him over as a final insult. Memorizing her license number, Pierre pursues the enigmatic motorist. Arriving at her home, Pierre is met by two young ladies (Marina Vlady and Odelle Versois), either one of whom might be the woman he's looking for.
In Provence , Father Caillé runs a family pension backed by his daughter-in-law Cora and a maid. The old man persecutes Cora for her assiduity until the day when she, in a particularly violent confrontation, knocks him down before the eyes of Gino, an Italian pensioner of whom she is in love. The two accomplices will try to make up the murder.
