Claire, a cardiac surgeon, is totally committed to her job where she hides in a fierce battle against death to elude the accidental passing of her very young son, which occurred ten years earlier. Her relation to life and to others has slowly disintegrated, especially with Antoine, her husband. On the anniversary of his disappearance, she saves the life of a teenager who would have had substantially the age of her own son if he were still alive. The following day, while she conducts a delicate surgery on a very old man, the teenager succumbs.
