For years the drifter haunted the background of American life, roaming the side streets and highways that crisscross this vast country. Cool and handsome, with a single teardrop scar and a knack for silence that keeps the world at bay, he is a man alone. That all changes on a rainy night in Chicago, when he witnesses a brutal assault on a young woman. By the time he reaches her, the assailant is gone, leaving a trail that is all too easy to follow....