In a newspaper obituary, Brad Carpenter, a San Diego homicide detective, recognizes the North Vietnamese army officer who killed his best friend thirty years ago. Somehow, that enemy soldier has come to the U.S.when he should not have been able to, and has established himself as a respected businessman. What is he doing here? When did he arrive? How did he die? Driven by his past, Brad must find the answers to these questions. His unauthorized investigation takes him away from his family and his official duties, to Denver, Colorado, where both the killer and the police relentlessly stalk him.