British doctor Sarah Farnsworth's life spirals out of control when she loses a patient during surgery, then soon after, loses herself. When it looks like she will be lost forever, the road of fate leads her to a blue convertible owned by the mysterious Billy Caldwell. She is informed Billy has twenty-four hours to get out of town and needs her help to get all of his affairs in order. But why does he have to leave? And what is the big hurry? As they drive around Atlanta in Billy's ragtop, visiting the people and places dear to him, Sarah realizes the crisp, October air has breathed new life into her due to her new friend. What she doesn't realize is Billy has been watching her. For years. And someone has been watching Billy. For decades...