A lawyer defends his childhood friend accused of killing his wife.

Chouf: It means “look” in Arabic, but it is also the name of the watchmen in the drug cartels of Marseille. Sofiane is 20. A brilliant student, he comes back to spend his holiday in the Marseille ghetto where he was born. His brother, a dealer, gets shot before his eyes. Sofiane gives up on his studies and gets involved in the drug network, ready to avenge him. He quickly rises to the top and becomes the boss’s right hand. Trapped by the system, Sofiane is dragged into a spiral of violence…

The longtime mayor of Marseille is preparing to hand over the reins to his protégé when a sudden and ruthless battle erupts for control of the city.

Newly transferred to the bustling port city of Marseille to assist with a crackdown on organized crime, energetic young magistrate Pierre Michel is given a rapid-fire tutorial on the ins and outs of an out-of-control drug trade. Pierre's wildly ambitious mission is to take on the French Connection, a highly organized operation that controls the city's underground heroin economy and is overseen by the notorious —and reputedly untouchable— Gaetan Zampa. Fearless, determined and willing to go the distance, Pierre plunges into an underworld world of insane danger and ruthless criminals.