Cody Hoyt, while a brilliant cop, is an alcoholic struggling with two months of sobriety when his mentor and AA sponsor Hank Winters is found burned to death in a remote mountain cabin. At first it looks like the suicide of a man who's fallen off the wagon, but Cody knows Hank better than that.

Along a slow-moving river, he watches as her body drifts below the water's murky surface, forever altered. Before he disposes of each victim, he takes a trophy. It's a sign of his power, and a warning--to the one destined to suffer most of all... In Grizzly Falls, Montana, Detectives Selena Alvarez and Regan Pescoli are struggling with a new commander and a department in the midst of upheaval. It's the worst possible time for a homicide. A body has...