In Montreal, the unemployed fashion designer Sophie Malaterre is shown a website, switch.com, where it is possible to switch houses with a stranger for vacation. Sophie seeks an apartment in Paris nearby the Eiffel Tower that belongs to Bénédicte Serteaux and they change apartments. Sophie arrives in Paris on Saturday morning. The next...

From his offices in Switzerland, Russian Igor Lipovsky is engaged in a vast and profitable gunrunning operation with Africa. The French government wants to hinder the activities of the arms dealer and sends a team to sink one of his ships heading for Angola with a load of illegal weaponry. Lisa, Brisseau, Loïc, Tony and Raymond are pro...

A Parisian criminal gang fall apart after challenges to the gang's leader lessen his influence.

The disappearance of a young woman puts two forensic police officers on the trail of a serial killer. Their fears are confirmed by the discovery of several corpses, what follows is a long hunt across Paris.

Carré is the boss of the BRB (Brigade for the Repression of Banditry). 3 years earlier, he arrested a big mobster, Kancel. Today, thanks to an extraction, Kancel kidnaps the cop. He has 96 hours to elicit a single information: know who gave him.