The film unfolds over a year, capturing the journey of three characters: a son (played by Magimel) who has been diagnosed with cancer, a mother (portrayed by Deneuve) grappling with helplessness, and a doctor (Cécile de France) dedicated to her profession. Through the changing seasons, these individuals face the challenge of confronting the illness, learning to manage it, and exploring the essence of living in the face of mortality.