Pierre, a professional dancer, suffers from a serious heart disease. While he is waiting for a transplant which may (or may not) save his life, he has nothing better to do than look at the people around him, from the balcony of his Paris apartment. When Elise, his sister with three kids and no husband, moves in to his place to care for him, Pierre does not change his new habits. And instead of dancing himself, it is Paris and the Parisians who dance before his eyes.

What to do when the workers of a factory have been laid off overnight? Louise has an original idea: why not pool the compensation money to ... hire a hit man and to liquidate the boss? Motion accepted so Louise goes in search of the gem they need and unfortunately comes across Michel, a stinky security specialist. Michel, who is busted, gladly accepts the deal but proves so inept that he sub-contracts the job to improbable novices. Moreover, as the factory was a mere branch of a multinational company, it is no bed of roses to find the one who actually made the decision to outsource its activities. But Louise will not give up so easily.

Antoine Méliot is around 40 years old and has everything he needs to be happy: a beautiful wife, two adorable children, friends he can count on, a pretty house in the Yvelines and money. But one day he decides to ruin everything in one weekend.

In the near future Paris, a cop is searching for his wife's killer. The trail leads him to a high tech medical clinic where everything is not what it seems.