Acha and Myriam, fifteen years old, are bored out of their skulls in their social housing project. Sam, the leader of a gang of boys, asks them to be gardiennes for him. Honored, they stand in front of the main entrance of Building C, convinced they are participating in exciting drug deals.

Wael, a former street child, makes a living from small scams with his adoptive mother and partner-in-crime Monique. When this unconventional duo swindles the wrong guy, Victor, an old acquaintance of Monique now in charge of a support organization for troubled teens, they have no choice but to become his interim secretary and educator in order to redeem themselves.