After a family tragedy for which he feels guilty, Ismael, 25 and his young brother, Mouloud, 14, leave Paris to visit their uncle's family in Marseille where they are warmly welcomed. Actually, Ismael is given the responsability to take Mouloud to Tunesia where his parents now live. But Mouloud refuses categorically. To escape this departure, he turns away with the complicity of his cousin Rhida, and gets together whith Renard, a dangerous local drug dealer. Ismael desperately seeks his young brother in this multiracial town which rejects and attracts him..