The story of four lifelong friends who met in the 2000s when they were presidents of the BDE of the Nantes Institute of Business. At the time, they were the "Bioman": the kings of partying, excess and "transmutation". 20 years later, they have mellowed out and lead well-ordered lives. Except... Once a year, when they get together for the WEB: the Bioman Weekend. There, they "transmute" hard as they like to say. In short: they drink and sing in a pathetic way.
In the middle of a performance at la Comédie-Française, an actor dies on stage, poisoned. Martin, member of the troupe and friend of the victim, becomes the center of everyone’s attention. Suspected by the police, he’s also chased by a mysterious organization, Le Parfum vert, that seems to have ordered the murder.
Emma, a French novelist aged 27, decide to go to Berlin and join a brothel to uncover the prostitution world, the subject of her new book. Such as gonzo journalism, Emma become a prostitute and her experience, which was supposed to last a few weeks, will last two years. Was writing her book an excuse for Emma to live a shameful fantasy?