A spine-tingling standalone thriller of obsession from bestselling crime writer Peter James. To the outside world, suave, charming and confident doctor Marcus Valentine has it all. A loving wife, three kids, a great job. But there's something missing, there always has been... or rather, someone.Driving to work one morning, his mind elsewhere and not on the road, he almost mows down a woman jogging on the street. As she runs on, Marcus is transfixed...