A chilling read from king of the Seattle serial killer thriller and New York Times bestseller, Kevin O'Brien. Perfect for fans of Chris Carter, Karin Slaughter and Mary Burton.

A family of four murdered in their hotel room. A single mother and her boyfriend stabbed to death. A sordid past of crimes repeated - decades apart.

Therapist Olivia Barker has heard things, distressing stories that keep her up at night, disturbing details that only a killer would know - a killer who could be one of her patients.

As the body count rises, so do Olivia's fears. A rock is thrown through her window, her car tires slashed, a chilling message scrawled across her bathroom mirror. Olivia knows she's getting closer to uncovering the truth. But it could be the last thing she'll ever know...