Tanguy is 28 years old and still living with his parents. They think it's time he moves out. He doesn't, so they hatch a plan.

Agathe Clery, a marketing manager for a cosmetics company, is snobbish, stubborn and racist. When she is diagnosed with Addison Syndrome, an disorder that darkens the pigmentation of one's skin, she suddenly finds herself resembling a black woman.

Sabri Lahlali, the assistant principal of a local high school, is ready to do anything to ensure that his son, who is about to take his high school diploma, has the ideal academic record. But he doesn't know how far his enterprise will take him.

In 1960, in a coastal town near to Nantes, Jean Ripoche lives with his wife Liliane, their four children and Liliane’s father Lucien. Jean divides his time between running his plumbing business and making a float for the Nantes carnival. The Ripoche’s ordered lives are thrown into turmoil when Jean’s former friend, Yvon Legualoudec, returns to the town – with his black wife Annabelle and their three children. Before he disappeared twenty years ago, without saying a word, Yvon was Jean’s rival for Liliane’s affections. As bitter memories resurface, the relationship between Jean, Yvon and Liliane become strained.

After her mothers death, Grace, 14, decides to go back to Africa to find her father whom she hasn't seen since her parents divorced. After his plane crashes in the desert, her father gets caught by diamond hunters. Grace follows her fathers route along with family friend Kadjiro...

16 years later, Tanguy, now 44, returns to his parents' house with his daughter Zhu under his arm because Meï Lin left him. Disappointed to see their "little one" in this state, Paul and Edith do everything to give him a taste for life, without realizing that by doing so, they braid the rope to hang themselves. Because Tanguy is starting to feel good with his parents.

Francis, the boss of a small plumbing supply company, is harassed by tax collectors, striking employees, and an impossible wife and daughter. His only joy is sharing lunch with his friend Gerard. Then a TV show called "where are you?" shows a woman from Gers who is searching for her husband who disappeared 28 years ago. The lost husband looks like an identical twin of Francis...

September 1960: on a purely punitive basis, eight scouts must climb the solid mass of Brévent to 2500 meters of altitude. The so beautiful and so majestic mountain which draws up face them very quickly reveals dangerous. All the techniques of orientation learned at the scouts will do nothing there. The teenagers find themselves delivered to themselves. Lost in the abrupt throats, the eight boys are confronted cold, with the hunger and the fear.