Raised by a clan of demon hunters, Sarain was taught that her one mission in life was to destroy every monster that she could find. But it isn't until she saves a boy named Kit, that she starts to rethink her reclusive ways. Taking it upon herself to care for Kit as she helps him discover what has become of his family, Sarain stumbles upon a more sinister presence in the slums of the city than just a few bloodthirsty demons.
During her quest to put an end to the demonic activity that plagues the town, Sarain meets Winston, a charismatic and manipulative half-demon who is intertwined in the menacing plot. And in order to stop it, Sarain must determine where Winston's loyalties lie, and whether or not she can trust him.