How can you win a deadly game without knowing the rules? The news of her father's accidental death is a shock for Katharina Holten. Not only does she have to return home and take over her father's driving school, but she's also confronted with the event that turned her life upside down years before. Then her niece Ronja disappears. If Katharina doesn't manage to find out what this has to do with her family's history, the young girl is in danger of being killed. A breathless race against time begins... A gripping psychological thriller about a deadly family secret.