How can you spot a stalker when everyone looks the same?

A twenty-nine-year-old nurse working in the over-stretched A&E Department of a London hospital suspects her boyfriend might be cheating on her. But before she can confront him, she’s violently attacked, and in desperation turns to her estranged sister for sanctuary.

Feeling safe in the security of her new home she’s finally able to begin coming to terms with the traumas of her childhood and rebuilding her relationship with her sister. But her severe face blindness means she can’t recognise faces, so can't be sure that her ex isn't worming his way back into her life.

Is he playing tricks with her mind?

Can she figure out the truth about his identity before it’s too late?

An unsettling domestic/ psychological thriller and a richly rewarding tale of sisterly affection; perfect for fans of both Gillian Flynn and Meg Mason.