A mummified corpse is happened upon in a cellar on Norderney. It soon becomes clear that a serial killer has repeatedly walled young women in, imprisoning them and leaving them to die of thirst in agony. When a young woman disappears without a trace and a gynecologist is violently abducted, Ann-Kathrin is forced to take action. How many more walled-in captives are waiting for her to find them, and what is the killer’s motive for doing this?
