Claude and Marie Verneuil will soon be celebrating their 40th wedding anniversary. For the occasion, their four daughters - Isabelle, Odile, Ségolène and Laure - decide to organize a big surprise party in their family home in Chinon. They also decide to invite, each, the parents of their respective husbands - Rachid Benassem, David Benichou, Chao Ling and Charles Koffi.

Li Qin leaves her temperamental husband and unknowingly provides a trail for a detective who has been, for months, secretly devoted to her. In the wake of their one-way chase, a Chinese businessman wanders around town; two magicians attempt to overcome a crisis, and a waitress is desperate for stability. Some will find what they are looking for, some will find each other, and some simply will not.

Adam Ousmane is a pool attendant at a local resort. When the new managers decide to downsize, Adam loses his job to his own son, Abdel. Shattered by the turn of events, Adam is pressured into contributing to the Chadian war effort. With no money to speak of, the only asset he can donate is his son.

An African high school teacher flees his war-torn country for France, where he falls in love with a Frenchwoman who offers a roof for him and his family.

François, a young thirty-year-old Asian, has not been back in his family for 10 years after a violent dispute with his father Meng. Since then, he has always tried to avoid questions about his origins, until he lies to believe that he has been adopted. But when he learns that he is going to be a father, he realizes that he will have to reconnect with his past and his origins. Pushed by his companion Sophie, he decides to reconnect with his family and returns to his XIIIth native district to announce the good news, accompanied by his best friend Bruno. François is welcomed with open arms by his family, with the exception of his father and his younger brother. The return to his community is not going to be so simple .