A tragic accident. It all happened so quickly. She couldn't have prevented it. Could she?
In a split second, Jenna Gray's world descends into a nightmare. Her only hope of moving on is to walk away from everything she knows to start afresh....
"Chilling." - Paula Hawkins
When Zoe Walker sees her photo in the classifieds section of a London newspaper, she is determined to find out why it's there. There's no explanation, no website - just a grainy image and a phone number. She takes it...