Profiler and therapist Kez Lanyon is slowly getting used to her new job working in a behavioural sciences unit with some of the worst people she has ever met. She regularly plots an escape but knows she is there for the foreseeable. Then she is called in to work on the case of Robyn 'Avril' Managa. Twenty-five-year-old Robyn was twelve when she witnessed her controlling and abusive father brutally murder her mother. Rather than go to prison, her well-connected father was given the chance of life in witness protection with a new name and erased background. Robyn was put into care. After struggling all her life to make sense of what she saw, she's decided it's time for a family reunion - so she's killing everyone who had anything to do with her father's case until they turn him over to her.