In St. Petersburg, an old woman was murdered. In Moscow, they found her former daughter-in-law with her husband in a pool of blood. The case seems simple: a suspect is arrested, and he gives very inconsistent testimony. It wouldn’t cost anything to press him—if the investigator Tatyana Obraztsova and the operative Anastasia Kamenskaya didn’t have experience and intuition. They’re given a wrong lead. But even if they identify the real criminal, it doesn’t become any easier. Now they have to decide what matters more: the letter of the law or a person’s life…