Nadia a élevé, seule, son fils Noé en banlieue parisienne. Elle est fière quand il est accepté en seconde dans le prestigieux lycée Henri IV. Pour favoriser ses études, elle déménage dans Paris et s’endette pour lui offrir ce que les autres ont. Elle découvre le plaisir d’acheter, développant sans le savoir une addiction à la consommation. Alors même que son fils réussit à s’adapter à son nouveau Lycée, elle ne peut plus s’arrêter.

Imagine, if you will, a somewhat contented married woman finding out her husband's infidelity during the celebration of a birthday party. That is what happens to Marie-France, when her husband, Henri, pulls out panties from his pocket to be used as a handkerchief. Marie-France becomes furious, storming out of the house. His son, Sebastian and his wife, Clementine, a struggling couple, decide to take Marie-France to their tiny apartment, something they feel it is a temporary arrangement. Little did they know what they were getting into...

Thierry, an ethnologist specializing in the Sami people, travels to his native Switzerland with his partner, Sophie, to attend his grandmother's funeral. There he reunites with his family and discovers that he has inherited two million Swiss francs, but that in order to obtain it, he will have to pretend to adapt to the Swiss values and lifestyle that he had rejected. To do so, he agrees to undergo a sort of crash course provided by his Swiss cousin Aloïs, who seems to have his eye on Sophie.

Victoire Misonier, a law student at the Sorbonne, is charged with the murder of Master Charles Sard. Desperate, Victoire turns to Cesar Garbo, a criminal law professor, for help. Accompanied by two student assistants, they attempt to track down the atypical career of the victim, a distinguished professor at the Sorbonne.