In Paris, the thirty-five year old Nora Cotterelle has been the director of a famous art gallery for six months and will marry the wealthy owner Jean-Jacques within the next weeks. When she travels to Grenoble to meet her beloved son Elias that is spending vacation with her father, the professor and writer Louis Jenssens, she discovers that Louis has a terminal cancer, and she decides to stay in Grenoble nursing her father. Nora recalls her relationship with Elias' father Pierre and with her viola player lover Ismaël Vuillard, who raised Elias for seven years and for whom her son has a great affection. Meanwhile, Ismaël is interned in a psychiatric hospital against his will. Along the days, Nora and Ismaël discover cruel secrets about their families' relationships.