A formerly famous kid detective, now in his early thirties, finds his routine disrupted when his first real adult case appears in the form of a woman seeking answers in the murder of her boyfriend.

The skeleton of a young woman is discovered, tied to a stone, in a lake deep in the Danish countryside. The woman's identity is a mystery; no one matching her description has been reported missing... After months of fruitless investigation by the local police force, a media scandal brings the case to nationwide attention and is quickly handed over to Konrad Simonsen and his team from the Copenhagen Police force. It soon becomes clear that this unknown...