Paris 2020. While superheroes have assimilated into the Parisian society, they discover a new drug that gives themselves personal superpowers to mere mortals. Lieutenants Moreau and Schaltzmann are investigating the case with the support of two ex-superheroes, Monte Carlo and Callista. They'll do whatever it takes to dismantle the traffic. But Moreau's past resurfaces, and the investigation becomes more complicated.

Paris in summer. Maxime has a revelation: Camille, the pretty cashier at the supermarket no longer interests him. The problem is, he does not know how to tell her without hurting her. The other problem is that in fact he has never dared to speak to her.

40-year-old Bertrand has been suffering from depression for the last two years and is barely able to keep his head above water. Despite the medication he gulps down all day, every day, and his wife's encouragement, he is unable to find any meaning in his life. Curiously, he will end up finding this sense of purpose at the swimming pool, by joining an all-male synchronised swimming team.

On this particular day, Armand Münster, the boss of a caddy factory on the edge of bankruptcy, is drowning in a sea of problems.

In the dog days of summer, two sisters and their mother move into a concrete tower surrounded by farmland as far as the eye can see. Twelve-year-old Violette innocently concentrates her budding desires on Franklin, while Isa, her older sister, staves off her sadness with short-lived romances.