Et dans le flux, tu le perdras.

Léo and Kaspard, a young couple, live in Nanterre. Léo is fed up with Kaspar's reproaches and takes to social networks to make their love story public. Their breakup marks Léo's departure for Berlin, a city where he hopes to be reborn through contact with an alternative milieu. But the city's real estate speculation pushes Leo to the margins. Years later, Kaspar's biological daughter, raised by a couple of women, recalls this love story on a theater stage.