It starts like a normal criminal case. A businessman's body is found. His brother and partner is a suspect and is clearly identified as the perpetrator by the traces. Only Inga Lürsen does not believe in his guilt. She keeps digging, putting not only herself but also those around her in mortal danger. Suddenly she has to fight for the life of her daughter Helen. Both are kidnapped and it doesn't look like they stand a chance of escaping the trap they've fallen into alive. Her colleague Stedefreund is ignored when he wants to help her and is suspended from work. Inga Lürsen realizes far too late that she has become part of a devilish game from which she can only free herself if she behaves differently than is expected of her.