Sarah and Alex are young, beautiful, they love each other, they own their lives. Until tragedy strikes. One morning, Alex's body is found down a cliff. The investigation rules Alex's death a suicide. Sarah's life breaks down. Back in Paris, gripped by grief and sorrow, Sarah does not understand what made her husband commit such an irredeemable act. But one day, she receives a letter from Ardèche. A passionate love letter from a woman she does not know, called Inès and that is addressed to Alex.
