After the death of his parents, Pierre is forced to care for his younger sister Nathalie by committing petty crimes. In a recurring motif of Gérard Blain’s cinema, Pierre is taken under the wing of an older gay man, Hubert , who offers him work and financial security; but when Hubert makes advances to him, Pierre robs him and takes up with a group of radical leftists who are planning terrorist attacks. Without employment, Pierre loses Nathalie to child services and spirals into desperation, finally erupting in an act of horrific violence. An x-ray showing the largely undiagnosed sickness of its time, and a stern warning to ours.

A couple takes on a homeless teenager. The trio forms a family-like community that seems to work extremely informally and without many regulations. But then the harmonic situation escalates as the boy falls in love with his "adoptive mother".

A woman tries to come to terms with the death of her son, who was killed by a hospital error.

A homeless young man, living in his delivery truck, is simultaneously adopted by a pranksome group of youngsters and made into a police informer. Believing that he is doing something good both for the other kids and for himself, he has no qualms.

After the birthday party of his wife Odile, Louis accompanies a friend to the station. When the train leaves he starts reminiscing about his youth.