A chilling psychological thriller by a million-copy bestselling author.Who really killed Maisie Earnshaw?Within the walls of the high-security psychiatric facility, Crowmont Hospital, reside many violent offenders. To nurse Leah Smith, no matter what, all offenders are patients first and foremost. When Leah is appointed as a nurse to Isabel Fielding, she is determined to remain professional despite the shocking crime Isabel allegedly committed in her past.Years ago, six-year-old Maisie Earnshaw was found face down in a duck pond, her body mutilated. Isabel--at age fourteen, found covered in Maisie's blood--was convicted of murder.As Leah spends time with Isabel, she comes to know her as a young woman with a sweet, gentle nature, someone she could never see as a murderer. Leah begins to suspect members of the Fielding family of framing Isabel as a young girl, and she's not the only one. True crime blogger James Gorden thinks Isabel is innocent too.Is Leah allowing her own dark past to taint her judgement ...