When Chief Inspector Gamache arrives in picturesque Three Pines, he steps into a village in chaos.

A man has been found bludgeoned to death, and there is no sign of a weapon, a motive or even the dead man's name. As Gamache and his colleagues start to dig under the skin of this peaceful haven for clues, they uncover a trail of stolen treasure, mysterious codes and a shameful history that begins to shed light on the victim's identity - and points to a terrifying killer...