You thought you knew who you were. A stranger knows better.
You've left the city - and the career that nearly destroyed you - for a fresh start on the coast. But soon after the move, your daughter starts to withdraw, because her new best friend, George, is unfairly expelled from school.
You beg the principal to reconsider, only to be told that George hasn't been expelled. Because there is, and was, no George.
Who is lying? Who is real? Who is in danger? Who is in control? As you search for answers, the anonymous calls begin - a stranger who insists that you and she share a traumatic past and a guilty secret. And then the caller threatens your life...
This is Justine's story. This is Justine's family. This is Justine's game. But it could be yours.
A dazzling psychological thriller, perfect for fans of The Girl on the Train and Gone Girl, from the author whose work Tana French describes as "like watching a nightmare come to life."