Bill Baker, an American oil-rig roughneck from Oklahoma, travels to Marseille to visit his estranged daughter, Allison, who is in prison for a murder she claims she did not commit….

A police brigade working in the dangerous northern neighborhoods of Marseille, where the level of crime is higher than anywhere else in France.

Zachary, 17 years old, gets out of jail. Rejected by his mother, he hangs out in the mean streets of Marseille. This is where he meets Shéhérazade.