Set in London, where gratification is only an app away, the story centers on Arabella, a carefree, self-assured Londoner with a group of great friends, a boyfriend in Italy, and a burgeoning writing career. But when her drink is spiked, she must question and rebuild every element of her life.

Fi Lawson arrives home one day to find a family of strangers moving into her house and her husband, Bram, has disappeared. As the nightmare takes grip, both Bram and Fi try to make sense of the events that led to a devastating crime and how they each are going to survive the chilling truth.