Noumouké, from the suburb of Paris, is about to decide which brother's foot steps to follow - the lawyer student Soulaymaan or the gangster Demba.

Névine, a secondary school monitor, is fully committed to her somewhat thankless day job, dealing with teachers, administration and students. Logan, a pupil she is found of insists on getting a cap back from lost and found. She has no idea of the consequences of her gesture.

A few miles from Paris, on the other side of the northern ring road, stands a ghetto neighborhood with countless rows of dilapidated apartment buildings, their concrete crumbling and iron rusting. A multiracial community has long been rooted here, while most native French families have deserted the area. In tower 216 lives a "model" family of Algerian origin, the Bouamazzas. Our heroine, Aïcha, 25, the eldest daughter, is held up as an example by the whole community. But Aïcha can no longer bear the weight of the community: she wants to spread her wings, gain her independence, and finally cross the Rubicon.