After a successful bank robbery, Micky hopes to take back his girlfriend Marie who has been taken from him. On the way to Paris he meets Leon, a neurotic dreamer whom he considers an idiot. Leon can hardly understand what Micky is up to but he follows him everywhere and soon falls in love with Marie.

This simple romantic tragedy begins in 1957. Guy Foucher, a 20-year-old French auto mechanic, has fallen in love with 17-year-old Geneviève Emery, an employee in her widowed mother's chic but financially embattled umbrella shop. On the evening before Guy is to leave for a two-year tour of combat in Algeria, he and Geneviève make love. She becomes pregnant and must choose between waiting for Guy's return or accepting an offer of marriage from a wealthy diamond merchant.