The gripping new thriller from bestselling author Catherine Shepherd. A gruesome discovery rocks Berlin: A teenager has been brutally murdered. The evidence seems clear—a classmate of the victim is the prime suspect. For the investigators, the case is open and shut, but special investigator Laura Kern senses that something is amiss. When more bodies are discovered and all the clues again point to the same teenager, Laura's unease intensifies. Could a single teenager truly be capable of such cruelty? Or is a sinister secret lurking beneath the facade of an ordinary school community? In her latest case, Laura Kern stumbles upon a hidden room that harbors a dark secret. What lies behind this locked door surpasses even her worst fears. And as the clock ticks, Laura realizes that she has long since become part of a deadly game...