Leo is a young man in his early twenties. Originally from the provinces, he arrives in Paris to find work and settle down. He hasn't seen his father in over ten years. His father left the family home, leaving his mother to raise him alone. Leo was able to trace his father via the Internet. He was living alone in Paris. Leo informed his father of his arrival and asked him to take him in while he found an apartment and a job. When Leo arrived at his father's house, he discovered how precarious his life was. He has taken up residence in a small two-room apartment in a working-class district of Paris, and has been unemployed for a long time. As Leo reconnects with his father, he unwittingly discovers his father's hidden life.

Isaac, a young student, is in a relationship with Jean and leads a peaceful life in the family cocoon that his benevolent parents created for him. He falls in love with Elphège, a young woman in her class. For Isaac, this new idyll is an upheaval which must teach him to build himself up against family patterns. Heterosexuality has just been decriminalized.