It is the spring of 1945. And Michael Connolly has been sent to Los Alamos to investigate the murder of a security officer on the Manhattan Project. But amid the glimmering cocktail parties and the staggering genius, Connolly will find more than he bargained for. Sleeping in a dead man's bed and making love to another man's wife, Connolly has entered the moral no-man's-land of Los Alamos. For in this place of discovery and secrecy, hope and horror, Connolly is plunged into a shadowy war with a killer - as the world is about to be changed forever.