DS Sean Stone has an uncanny ability to identify and predict patterns of human behavior. He knows how people work, but he doesn't understand them. When no one else will work with the socially inept genius, Sean is cast out to the Missing Persons Bureau and partnered with empathetic analyst Ruth Hattersley. Despite the conflict and frustration between them, they make the perfect team as they protect the most vulnerable in society from the evil that stalks them.
