Search and rescue volunteer Johnnie Lancaster and her dog, Cougar, serve their community by bringing home the skeletal remains of the lost no one could save. But sometimes being the best at what she does isn't good enough. Nothing has trained her for a serial killer who appears to chew on the bones of their victims, and it's not long before Johnnie is convinced the killer walks by day as a human and hunts by night as a werewolf.

Forensic anthropologist Shantel Kind has never seen a case like this one. That doesn't mean she's prepared to believe in a preternatural killer. As she works closely with Johnnie, their attraction is impossible to deny, but the death toll keeps rising, and time is running out. They might have to risk their lives—and their love—to stop a werewolf.