Hit hard by unemployment and poverty, the underprivileged neighborhoods of Lille and Roubaix are at the heart of one of the largest priority security zones in France. Day and night, the police fight relentlessly against crime. The investigation brigades and the Police-Secours teams which intervene in these two cities, among the largest in the Nord department, have agreed to be monitored in their daily lives. This is an opportunity to discover their working methods but also their anxieties and fears.
