Seventeen-year-old Jill Turner is the final girl, the lone survivor of a campsite massacre. Now, a killer is on the loose, and Jill holds the key to catching him. But this killer is no ordinary man. He is a monster, both alive and dead, and Jill knows this all too well. She knows what the monster is. She knows where he comes from. And she knows that he will kill again.
For veteran homicide detective Darlene Moore, this case is personal. Having lost her daughter two years ago, she finds herself drawn to Jill, and she will stop at nothing to protect her. But there is something strange about Jill’s story, something that leads Darlene to wonder if the girl knows more about the killer than she is letting on.
Jill is keeping a secret, one that has cost the lives of four of her friends. As Jill struggles with her past and the knowledge that her actions may have created a monster, Darlene races against time to stop a killer before he strikes again.