Harry Lyon was a rational man, a cop who refused to let his job harden his soul. His partner urged him to surrender to the chaos of life. But Harry believed in order and reason. Then one fateful day, he was forced to shoot a man-and a homeless stranger with bloodshot eyes uttered the haunting words that challenged Harry Lyon's sanity. "Ticktock, ticktock. You'll be dead in sixteen hours ... Dead by dawn ... Dead by dawn.