In and out of jail her whole life, Crazy Amy Stronghold seems to be stuck in a rut as a homeless street hustler, until her estranged daughter wants to reunite but not until she gets a real job and a house in suburbia. But when her daughter arrives unexpectedly, at her white-washed house, full of all her strongholds, Amy must learn how to be set free from within before her daughter is lost to her forever.

2012. The northern districts of Marseille hold a sad record: the area with the highest crime rate in France. Driven by its hierarchy, the BAC Nord, a field brigade, constantly seeks to improve its results. In a high-risk sector, the cops adapt their methods, sometimes crossing the yellow line. Until the day the justice system turns against them .