A figurine made of chestnuts is found at the scene of a grisly murder; from this creepy clue, two detectives hunt for a killer linked to a politician's missing child.

Detective Hess and Thulin reunite as they race against time to catch a perpetrator playing a disturbing game of hide and seek in the gloomy mists of Copenhagen's suburbs. As more victims are drawn into the deadly game and the body count rises, the duo must stop the killer before more lives are lost.