Three men have been murdered in a Sussex village, and Scotland Yard has been called in. It's a baffling case. The victims are soldiers who survived the horrors of the Great War only to meet a ghastly end in the quiet English countryside two years later. Each had been garroted, with small ID disks left in their mouths. But even Scotland Yard's presence doesn't deter this vicious and clever killer. Shortly after Inspector Ian Rutledge arrives, a fourth soldier is found dead. With few clues to go on and the pressure building, Rutledge must gamble everything to find answers -- his job, his reputation, and even his life.