"A missing girl. A tormented witness. A web of lies. And someone is watching... When Ella Longfield overhears two attractive young men flirting with teenage girls on a train, she thinks nothing of it - until she realizes they are fresh out of prison and her maternal instinct is put on high alert. But just as she's decided to call for help, something stops her. The next day, she wakes up to the news that one of the girls - beautiful, green-eyed Anna...

"Every Wednesday, like clockwork, the terror returns... It seems like an ordinary Wednesday, until the phone rings. A mysterious caller with a chilling threat. Journalist Alice Henderson hangs up, ready to dismiss it as a hoax against the newspaper. But the next Wednesday, the stalker makes another move - and it becomes clear that this is all about Alice. Someone wants her to suffer, but for what? Her articles have made her a popular local champion...

On a train with her husband, miles from home and their four-year-old son, Ben, Sophie receives a chilling phone call. Two boys are in hospital after a tragic accident. One of them is Ben. She thought she could trust Emma, her new friend, to look after her little boy. After all, Emmas a kindred spiritsomeone Sophie was sure she could bare her soul to, despite the village rumours. But Sophie can't shake the feeling that she's made an unforgivable mistake...