Nilo is a feminist writer, living an orderly life with her husband and 13-year-old daughter Laura. When her irresponsible sister Maya, whose projects constantly tend to bomb, both "kidnaps" Nilo's Volvo and daughter and heads south, Nilo tags along. The goal of the trip is Portugal, where the sisters’ complicated mother recently diagnosed with cancer lives, together with Maya’s son, who it has finally become time to take responsibility for.
In the peaceful world of Little Nicholas, there is Daddy, Mommy, the school, but above all, his band of friends. They are called The Invincibles, but above all they are inseparable. At least they think so. But when Dad gets a promotion and announces that the family is moving to the south of France, Nicolas' world falls apart. How can he imagine life without his best friends?
Paris, December. A conductor of a choir is found mysteriously murdered, with burst eardrums. Lionel Kasdan, a police inspertor the verge of retirement, and Frank Salek, an official of Interpol, embark together on a hunt for the killer, and also to a secret organization specializing in kidnapping children.
With their beloved mother only a few days to live, her children decide to give her a surprising parting gift: bring Dave, a lifelong fan, to her bedside in the Ardennes. But even though everyone adores her, brothers, sister and brother-in-law are not on the best of terms and cooperation is not their strong point. For her sake, however, they will overcome their resentments, drawing from their love the energy and the madness necessary to carry out their project. Finding Dave and luring him to the Ardennes will be no easy task.