After waking in a field, naked, battered, bloody, and with no memory of who she was, what had happened to her, Olivia “Liv” Stone, discovers that roughly four years have passed, a plague has swept her world, killing some and turning most into creatures only heard about in horror stories. Worse, she fears that in her missing four years, she might have been one of those beings. How that was possible, and how she was human again, Liv doesn’t know but aims to find out. Along the way, she joins a war to eliminate the remaining creatures by waking as many of the undead as possible.