Tiara, a fifteen-year old former child beauty pageant competitor, snaps and brutally attacks a woman in a coffee shop. What's strange is the aftermath—she can't explain what provoked her and her mind is wiped clean. Who is Tiara? What made her attack a seemingly innocent woman? And why can't she remember anything from before? Forensic psychiatrist, Dr. Eaton, and Detective Macintosh dig through her background for a motive, and the truths they discover shocks them to the core.