As humans turn into savage monsters and the world plunges into terror, a handful of survivors fight for their lives — and to hold on to their humanity.
Korean emperor Lee Gon tries to close the doors to a parallel world which was opened by demons; a detective tries to protect the people and the one she loves.
A young Joseon woman who's lived her whole life as a man ends up as a eunuch in the royal palace, where she begins to bond with the crown prince.
