Fifteen years. That’s exactly how long it has been since Elizabeth’s life stopped. Her 17-year-old daughter Kasia left home and never returned. The investigation so far has yielded no results and has failed to answer the most nagging questions: what happened? Is Kasia alive? The pendency of the unsolved case has so far failed to close a painful chapter in Elizabeth’s life. To make matters worse, every now and then there are false alarms that rekindle the ever-smoldering flame of maternal hope. Now – just after Kasia Zawada’s 30th birthday – a real clue emerges. A corpse is found in the depths of Poland, with traces of her blood on it. The conclusion is one – Kasia is alive, or at least she was alive until a few years ago! The case is reopened and makes its way to Zachary’s desk. For Filip and Elzbieta, the most difficult investigation of their careers begins, during which parental emotions increasingly take precedence over professionalism, and each new piece of the puzzle reveals Zawada’s hidden secrets.