Attorney D.A. Nina Frost sees a parent's worst nightmare firsthand--she prosecutes child molesters, and she's seen one too many walk free. But when her own five-year-old son becomes a victim, Nina is determined to do whatever it takes to find the assailant--no matter the consequence.
Picoult brings to life a female prosecutor whose cherished family is shattered when she learns that her five-year-old son has been sexually abused.

What does it mean to be a good mother?
How far would you go in the name of love -- and justice?

In the course of her everyday work, career-driven assistant district attorney Nina Frost prosecutes child molesters and works determinedly to ensure that a legal system with too many loopholes keeps these criminals behind bars. But when her own five-year-old son, Nathaniel, is traumatized by a sexual assault, Nina and her husband, Caleb, a quiet and methodical stone mason, are shattered, ripped apart by an enraging sense of helplessness in the face of a futile justice system that Nina knows all too well. In a heartbeat, Nina's absolute truths and convictions are turned upside down, and she hurtles toward a plan to exact her own justice for her son -- no matter the consequence, whatever the sacrifice.