When Jillian Rivers opens her eyes shes trapped in a mangled car. Then a stranger comes to her rescue…But something about him sets Jillian on edge. And if she knew what was lying out there in the Montana woods shed be truly terrified. Four people have already died and detective Serena Alvarez and Regan Pescoli are trying to make sense of a nightmare. With nothing to go on but a killers cryptic notes and their unsettling conviction that there is worse to come someone is waiting...watching...poised to strike and make Jillian the next victim.