When Michael Osbourne investigates the terrorist bombing of an airliner there is one clue that drives him on: a body found in the water near the crash site with three bullet holes in its face. Osbourne recognises the deadly markings as the work of a world-class assassin, a man whose very existence has not been proved because the only people ever to see him were his victims. Among those victims was a young woman Osbourne loved years before . . .
As Osbourne gets closer and closer to the assassin, his personal obsession threatens not only the investigation but his marriage as well. When the frightening identity of the assassin's employers becomes clear, Osbourne puts himself and his family in the sights of the most fearsome man on earth . . .