In the atmospheric outskirts of Copenhagen, a gruesome discovery shatters the peace when a woman is found murdered in a playground, a handmade chestnut figurine left at the crime scene. Detectives Naia Thulin and Mark Hess, two mismatched investigators, are assigned to the case. Thulin is ambitious and eager to transition to the National Cyber Crime Center, while Hess is a cynical, disgraced investigator recently deported from Europol. Their investigation deepens when they discover the victim’s fingerprints on the chestnut doll, linking the killing to the long-unsolved disappearance of Kristine Hartung, the young daughter of Social Minister Rosa Hartung.As the body count rises, the killers meticulously craft more chestnut men, each representing a specific failure within the
social services system regarding child protection. The detectives realize the perpetrator is targeting parents who have neglected their children, forcing a dark moral reckoning. The narrative masterfully weaves the past with the present, revealing a traumatic history involving a foster home and a pair of twins who suffered horrific abuse decades prior. This trauma serves as the psychological bedrock for the serial killer’s vengeance.The investigation leads Thulin and Hess into a labyrinth of institutional corruption and political maneuvering. Rosa Hartung, struggling to balance her political career with the agonizing hope that her daughter might still be alive, becomes a central figure in the mystery. Tensions escalate as the detectives
race against time to prevent further murders, eventually uncovering that the culprit is someone intimately connected to the social services department itself. The killer’s motive is not mere sadism but a twisted crusade to expose the state’s negligence toward vulnerable children.In a climactic confrontation, the detectives must navigate a web of lies to confront the murderer. The resolution forces both Thulin and Hess to confront their own professional ghosts, ultimately transforming their partnership into a bond forged in shared trauma and justice. The series concludes as a chilling commentary on the cyclical nature of abuse and the devastating consequences of societal indifference. Through relentless investigative work and psychological grit, the truth is finally unearthed, though the emotional scars left on the characters remain permanent, underscoring the grim reality of their dark, rain-soaked world.