Frustrated by the rising body count and lack of evidence, veteran homicide detective, Mac Jackson, questions his own ethics when he risks the life of an innocent young woman to trap a cunning and sadistic serial killer. Known for his uncanny precision with a hunch, he's all too aware that, this time, the stakes are much higher if his gamble fails to pay off. Jessica Croft, withdrawn, vulnerable, and emotionally scarred, moves from Sacramento to begin a new life in San Francisco with her twin brother, Judd. Ninety miles from the sinister, shameful secrets of her past, and the madness that tore their family apart, she hopes to find tranquility, maybe even love. However, her chance for happiness is short-lived when she suddenly finds herself the target of a relentless madman with a deadly agenda. Loath to continue living a life of fear, Jessica tells no one when she takes a bold risk to draw him out; dangerously unaware of the trap he has already set for her. Now nothing may be able to save her except the accuracy of a hunch.