A famous filmmaker works on his next film, which will focus on monstrosity. He is obsessed by the idea of finding a painting that will be central to the film and will crystallize all the power and beauty of monsters. But what he doesn't show to anyone, not even his wife, is the mark on his back that keeps getting bigger. This red mark worries him, upsets him, and seems to want to tell him something...

Judith leads a double life between Switzerland and France. On the one hand Abdel, with whom she is raising a little girl, on the other Melvil with whom she has two older boys. Little by little, this fragile balance, made up of lies, secrets and back and forth, cracks dangerously. Trapped, Judith chooses to head forward, at the risk of losing everything.