Mika, heiress to a Swiss chocolate company, is married to celebrated pianist André and stepmother to his son, Guillaume, whose mother died in a car wreck on his tenth birthday. Their lives are interrupted by the unexpected arrival of Jeanne, a young woman who has learned she was almost switched with Guillaume at birth.
Anna, a somewhat introverted woman, becomes obsessed with the orthopedic surgeon who helped with her recuperation following a car accident. Incorrectly believing the love to be reciprocated, she embarks on several attempts to try and stay in touch with him but, after several rejections, finds herself descending into despair and, ultimately, hatred.
Jacques asks a public writer to compose love letters for a beautiful stranger that he pretends he has just met.
