A new psychological thriller from the author of the #1 bestselling book The Passenger. Christmas. A time for family, friends... and enemies? Nicola is returning to her family home for the Christmas holidays to spend the festive season with her loved ones for the first time in several years. But she gets a shock when she discovers that there will be an unexpected guest joining them for dinner on the big day. Their elderly neighbour, Barbara, will be present at the table too after receiving an invitation from Nicola's parents because they hated to think of the old woman spending the day alone. That is a big problem for Nicola, although she struggles to let her family members know why. As far as they are concerned, Barbara is just the sweet old lady from next door. But Nicola knows the truth. That woman is not all she seems. And now she is in their house... Forced to confront several demons from her past, Nicola struggles through Christmas Day. But as difficult as it is to face the past, nothing is as hard as what happens next. It seems that Barbara has been waiting for Nicola to return home after all these years. Now she has, things will never be the same again...