"Gripping, enthralling - a top-notch thriller and a compulsive read". (S J Watson, bestselling author of Before I Go To Sleep). Rachel catches the same commuter train every morning. She knows it will wait at the same signal each time, overlooking a row of back gardens. She´s even started to feel like she knows the people who live in one of the houses. ´Jess and Jason´, she calls them. Their life - as she sees it - is perfect. If only Rachel could be that happy. And then she sees something shocking. It´s only a minute until the train moves on, but it´s enough. Now everything´s changed. Now Rachel has a chance to become a part of the lives she´s only watched from afar. Now they´ll see; she´s much more than just the girl on the train.