Part 1: A rainy autumn evening in Scarborough: 14-year-old Hannah Caswell waits in vain for her father Ryan at the deserted train station. A little later the student is as if swallowed by the ground. Alcohol addicted Detective Chief Inspector Caleb Hale takes the case, but is unsuccessful. Two years later, a girl’s body is found in the high moor. However, it is not Hannah, but another missing person of the same age. While the media are speculating about a psychopathic “high moor killer”, another 14-year-old girl, Amelie Goldsby, disappears in the parking lot of a supermarket. Her mother Deborah doesn’t even rely on the local police. She and her husband Jason desperately ask for help from Scotland Yard officer Kate Linville, who is a guest at their family guesthouse. However, the experienced investigator does not want to interfere in the work of her colleague and ex-lover Caleb - outside of her jurisdiction and busy with private matters. When “the Amelie case” turns unexpectedly, Kate can no longer escape. She pretends to be a journalist and immerses herself in a crime series that is second to none. Part 2:14-year-old Amelie is back with her family. However, since her disappearance and the rescue by Alex Barnes, the teenager seems to have been exchanged. Amelie disappears again on a trip to the high moor. Detective Chief Inspector Caleb Hale is now under even more pressure: Not only is he groping in the dark looking for the “high moor killer” and a missing person, now he is losing the only witness despite personal protection. Immediately Caleb searches for Amelie’s shady “savior” Alex, who extorted a reward from her parents and has since gone into hiding. The chief investigator experiences a painful surprise when he visits a suspect: the boat tour operator Chapland is having an affair with Kate Linville. The Scotland Yard officer no longer takes any account of her ex-lover and his responsibility for the case. However, she cannot use her Scotland-Yard badge here. Disguised as a journalist, Kate comes across another kidnapping case. However, in order to save the runaway Mandy, who is trapped in a lonely country house, Kate must risk her own life.