A novel of chilling suspense about a father who will do anything to protect his teenage daughterFollowing the tragic deaths of his wife and son, antiques dealer Terence Cave is left alone to raise his only daughter, fifteen-year-old Bryony. As the young girl struggles to come to terms with the loss of her twin brother, Reuben, Terence observes changes in her behaviorchanges he believes are more dangerous than the common trials of adolescence. In order to protect her, he begins to follow her whenever she leaves the house, becoming increasingly paranoid about her safety.Bryony resents her fathers lack of trust and refuses to obey the draconian rules he dictates to her, despite his warnings. And when Terence realizes that the boy Bryony is in love with was present when Reuben died, his fear drives him to actwith disastrous results.A brilliant psychological investigation into the relationship between parents and teenagers, and a story of nail-biting tension, Matt Haigs compelling third novel is truly unforgettable.