Algeria, 1994. S. and Lotfi, two childhood friends, cross the desert in search of Abou Leila, a dangerous terrorist. The quest seems absurd in the immensity of the Sahara. But S., whose mental health is vacillating, is convinced to find Abou Leila there. Lotfi, he has only one idea in mind: to move S. away from the capital. It is by sinking into the desert that they will confront their own violence.