Little Nicholas is a mischievous child who gets into all sorts of hilarious situations at home and at school. He lives in 1960s Paris and has to deal with strict teachers, social stereotypes, and family relationships. Despite the challenges, Little Nicholas always manages to find joy and adventure in his everyday life.

Despite a life surrounded by mystery, Emy tries at all costs to protect Gaëlle from certain realities concerning her, while Bastien struggles to remain in the mold imposed by his father, under the loving but powerless gaze of Louis.

Camille, 16 years old, shy and introverted, dreams of a different life, one far from her high school where she is constantly harassed by Nathalie, a schoolgirl with her other friends. Camille is very lonely, even if her parents (Michaël and Laurence) love her, but both of them don't have the time to listen and to notice their daughter's malaise. One day Laurence, Camille's mother, asks her to come with her to give a present to her father, Michaël. They both go to the pet shop.

While Tom has disappeared for few monthes, Bastien, Gaëlle and Théo have each of them to cope new problems, in a world where others look is very harmful...

Theo, in his twenties, is in the process of divorcing. As his day progresses, the happy elements of the past and the darker elements of the present intertwine, leading him to make a radical decision.