Grace Reinhart-Sacks gives the impression of a happy woman—and she really is happy. A sensitive, caring husband; the long-awaited beloved son; a successful career as a family psychologist—everything pleases her. In addition, her book about marriage and relationships is being prepared for publication, promising to become a bestseller. Grace is convinced that a person’s bad tendencies can be recognized at the very first meeting, and urges women to be attentive in order to avoid an unhappy marriage. It seems that Grace is precisely the woman who made the right choice. But one day, police officers appear on the doorstep of her home—and it turns out she didn’t really know the man she had lived with for fifteen years…