In the throbbing heart of Newland City, Ruby's life transforms after a chilling encounter with a demon. Her savior is a man named Tom, a member of the Sect, a clandestine organization that hunts demons. Now endowed with new-found abilities, Ruby joins Tom in a terrifying game of cat and mouse as they hunt a demon with an appetite for murder. Will Ruby and Tom find the demon and protect their city from supernatural predators? Or will they be the demon's next meal?