For days, the eighteen-year-old daughter of a high-ranking police officer has been missing. When the young woman regains consciousness in a mountain cabin above Chur, her captor forces her to write farewell letters to her family. However, she manages to outsmart the man and sends a message to the police. The cry for help that reaches Chief Investigator Giulia de Medici of the Graubünden cantonal police is disturbing and urgent, as it outlines the profile of a psychopath who has already told the victim when she will die. Time is running out; only a few hours remain. For Giulia, a race against time begins. When she realizes that the highly intelligent perpetrator is also playing his devilish game with her, it is already too late: a second young woman disappears in broad daylight. And this is just the beginning of a cruel saga. Giulia, who is tentatively exploring a new love in her private life, finds herself caught in the darkest storm of her life and becomes the hunted instead of the hunter.