Marie and Elodie think that the lack of affordable housing for the young can be resolved by reducing the number of retired pensioners in their apartment block, Le Lignon. As they scheme, they learn about the elderly and themselves.
Adrien, 40 years old and totally immature, is dumped by Maude, 35 years old, eager to finally found a family. In an attempt to regain the love of his life, Adrien decides to move into the future ex-married apartment: a nursery home - The beginning, an improbable educational experience.
Themroc, a bachelor house painter living at home with his mother, leads a sad and colorless life. One day, after a run-in with his boss, he rebels. He wrecks his apartment, rejects every facet of bourgeois life, and begins acting like an urban, modern-day Neanderthal.
Meet Adrien! He's 35. He's stuck in a mid-life crisis. He's neurotic and hypochondriac. Tonight he's stuck in an endless family dinner and his girlfriend is not answering his texts. On top of that, his dumb brother-in-law asks him to prepare a speech for his wedding. Could it get even worse?
A young man paying the rent for himself and his lifelong friends ends up flat-broke and resorts to selling marijuana to pay the bills – only to get caught up in the dangerous world of drugs.
Unlucky in love, Alfred tries to commit suicide, only to be thwarted by police efforts to prevent a simultaneous attempt by a nearby young woman. Recovering, the young lady puts him up at her house, as he has run out of places to live. He joins a Parisian sporting team and seems to have transferred his bad luck to a corrupt television boss who is attempting to manipulate the game so that Alfred's Paris team loses.