Returning to Paris, a man moves through memories of his past and surreal fragments of the present, searching for connection with his estranged father. On his journey, he meets a French-Algerian woman. As their intimacy grows, he is confronted with his shame and fears while exploring his lost Arab identity… Behind Paris is Algiers.
Because he forgot his identity card, Elias cannot take the entrance exam to Sciences Po. In search of a job while waiting to be able to take the exam again, he becomes an educator in a children's home. Confronted with an environment he doesn't know how to work, Elias doesn't yet know how much this experience will change his life.
Yuri, 16, has lived all his life in Gagarin Towers, a vast red-brick housing project on the outskirts of Paris. He dreams of becoming an astronaut. When plans to demolish Gagarin Towers leak out, Yuri joins the resistance. With his friends Diana and Houssam, he embarks on a mission to save their home, which has become his “starship.”