New York Times bestselling author, Gregg Olsen, delivers his fourth page-turning, stand-alone serial killer thriller, this time about a married-couple-killing-team who, through the most vile exploits imagininable, capture, rape, and kill young girls--and perhaps even a woman very close to them.

Hannah Griffin was a girl when tragedy struck. She still remembers the flames reflected against the newly fallen snow and the bodies the police dug up--one of them her mother's. The killer was never found....

Twenty years later Hannah is a talented CSI investigating a case of child abuse when the past comes hurtling back. A killer with unfinished business is on the hunt. And an anonymous message turns Hannah's blood cold:

Your Mom called...