The death of the doctor's wife horrifies the Twin Cities, especially what the killer did to her eyes. A report comes in of a troll-like man near the murder scene, his face a patchwork of scars, but that bizarre clue is all Lieutenant Lucas Davenport has to go on as he attempts to sort out the murder. Still trying to recover from a pair of particularly brutal cases, bone-weary, his nerves fraying, Davenport isn't sure he's up to it – until it happens again, the same savagery, the same mutilation of the eyes, and he realizes he has no choice. Little by little, Davenport is drawn into the web of a man of extraordinary intelligence and evil, a master manipulator fascinated with all aspects of death: the dark mirror of Davenport's own soul. As the hunt winds through darker and ever more frightening events, Davenport knows there is no turning back. This is the case that will lift him back to life – or push him irrevocably over the edge.