Before being extradited to Africa to stand trial, a notorious Belgian criminal is entrusted to the Marseilles police department for less than 24 hours. But the wily crook convinces bumbling policeman Emilien he's a lowly Belgian embassy employee who got railroaded by the brilliant master criminal.

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.

By hacking the rich youth, Manon and Léo accidentally find an email they shouldn't have seen...

Salif, an 18-year-old Mauritanian, lands clandestinely in France. His parents gave him a mission: find his older brother who lives in Paris and send him news. A search that will prove to be especially complicated and dangerous.