Fred Bonnemaison, a driven and self-centered Parisian food writer has to return to his home town, Lyon, when his mother, a lively octogenarian, runs away to join a community of free-thinking widows.

Freshly hired as a labor nurse in a chemical factory, Nour discovers that small arrangements exist between management and her father, Slimane, the staff representative, and the company's pivot. Lies about polluting discharges, hidden illnesses of employees, hidden accidents ... Nour, little by little, no longer accepts the compromises of his father to preserve the image of the company. She decides to launch the alert.

Since the death of his wife, Christophe is a control freak. When a supervisor is declared absent for the snow holiday camp right before Christmas, Christophe volunteers, but his son Victor and Marina the biology teacher are not too enthusiastic about it. Christophe feels confident until he is gifted with a mysterious power: he can hear the teenagers' every thoughts.