"Vincent, having grown up as the privileged daughter of artists, has a lovely life in many ways. At forty-four, she enjoys strolling the streets of Paris and teaching at the modern art museum; she has a vibrant group of friends; and she's even caught the eye of a young, charismatic man named Loup. But Vincent is also in Paris to escape a painful betrayal: her husband, Cillian, has published a bestselling book divulging secrets about their marriage and his own past, hinting that when he was a teenager, he may have had a child with a...