What does Cyrano de Bergerac do at a chicken farmer? This is the problem of Raymond, who has always kept his passion for the theater hidden. But when he is threatened with bankruptcy, he decides to try everything for the whole.

When a deadly mist engulfs Paris, people find refuge in the upper floors of the buildings. With no information, no electricity and hardly any supplies, Mathieu, Anna and their daughter Sarah try to survive the disaster.