Scales is an enforcer who keeps the peace in Ashtown, a rough, climate-ravaged desert town. But that fragile peace is fractured when a woman is mangled and killed within Ashtown's borders, right in front of Scales' eyes. When more mutilated bodies start to turn up, Scales is tasked with finding the cause -- and putting an end to it. As Scales and her team delve into both worlds to track down the invisible killer, what they find points to something bigger and more corrupt than they could've ever foreseen -- and it could spell doom for the entire world.