Two girls go missing, decades apart. What would you do if one was your daughter? Eight-year-old Grace is last seen in a sweetshop. Her mother Emma is living a nightmare. But as her loved ones rally around her, cracks begin to emerge. What are the emails sent between her husband and her sister? Why does her mother take so long to join the search? And is there more to the disappearance of her daughter than meets the eye?Meanwhile, ageing widow Maggie Sharples sees a familiar face in the newspaper. A face that jolts her from the pain of her existence into a spiralling obsession with another girl - the first girl who disappeared...This is a gripping psychological thriller with a killer twist that will take your breath away.