In Paris , Commissioner Stan Jalard and Inspector Simon Lecache plan to quit the police to go and enjoy a more peaceful life in the West Indies. In a nightclub, during a routine visit, they spot Schneider, a dreaded gangster and public enemy. At the time of his arrest, Simon is killed at close range by the criminal. Stan then decides to stay in the police to avenge Simon. Being the godfather of Christian, Simon's son, who sometimes lives in a boarding school, sometimes at home, he takes charge of his education. Two years later, Stan has been promoted, and he's told that Schneider had resurfaced in the capital. A long hunt begins.

Set in 18th century, a 10 year old deaf boy has been abandoned by his mother, Comtesse de Solar, and is taken care by Abbé de l'Épée, who teaches him how to comunicate and express.

Khalil, a young bachelor who tends to his family's farm on the outskirts of the city, is looking for his soulmate. He sees her in his dream: a young woman of exceptional beauty. He decides to marry her. By chance, the next day, in the alleys of the medina, he meets this girl, Rachida. In addition to her exceptional beauty, she has an exceptional behavior and by marrying her. Rachida, once a dream, quickly becomes a nightmare.

A young policeman of Moroccan origin investigates the murder of an informer. His investigations soon lead him to question his own past.