A paid assassin working for the biker gangs of Quebec outsmarts both the police and the underworld for decades, committing 28 hits over 25 years.

Paris, the late 1960s. Madame Claude is at the head of a flourishing business dedicated to prostitution that gives her power over both the french political and criminal worlds. But the end of her empire is closer than she thinks.

Paul is married to Sali. Everything would be fine if they could get a child. Until the day when Sali receives the call that they have been waiting for so long: their adoption file is approved. He is adorable, he is 6 months old, his name is Benjamin. He is blond with blue eyes and white. They - are black.

In 1991, 24-year-old Detective Alexandre Falco has it all, a loving wife, a new-born daughter and his dream job. But one day out in the field, he is shot in the head. Falco opens his eyes again 22 years later to a changed world, where everything he once had is no longer as it was.

Mitraillette is 12 years old and lives in Rose City, a housing estate he would not leave for anything. His whole world comprises his family, especially his 16 year-old cousin Isma, who has taken a fancy to Narcisse, the local crime boss. His older brother Djibril is 22, a student at the Sorbonne who dreams of becoming a lawyer. As for Mitraillette, he has his eye on Océane, the most beautiful girl in his school...