Young Zakari lives in a suburban housing project. He accidentally kills one of his friends and must flee, pursued by the "big brothers." His sister, Max-Laure, a drug addict, searches for drugs and then tries to find her brother. Meanwhile, Zakari's brother plays "red roulette ," a car race that involves running the most dangerous red lights.

After learning of her husband's infidelities, a housewife invites an itinerant lesbian to move in with them. None of their lives will ever be the same again.