
S01E01 Red Cap Incident
Song Ha-yeong pursues a criminal known for targeting young women. Kook Yeong-su looks to form a team of criminal behavioral analysts.
A crooked new police chief causes trouble for the team. The deaths of a professor and his wife touch off a series of brutal murders.
A team of tenacious detectives study the minds of murderers at a time when Korea's first serial murders terrorized the nation. Based on true events.