In 1994, the gruesome discovery of two young twins murdered at a summer cabin shocks the community. Evidence initially points to a clique of privileged students from a nearby elite boarding school. However, the investigation is abruptly closed when a local misfit confesses and is sentenced for the crime. Two decades later, the case lands on the desk of Carl Mørck, who quickly senses that something is amiss. As Carl and his partner Assad delve deeper into the investigation, they uncover an old emergency call from a frantic girl who appears to hold the key to the mystery. Their pursuit soon becomes a race to find Kimmie, the girl who vanished after the murders. However, Carl and Assad are not the only ones searching for her; a group of powerful men, whose reputations are at stake, are determined to ensure her silence at any cost.