The drama is a spin-off of "Secret Forest" and revolves around the popular character Seo Dong-jae. It tells the story of Seo Dong-jae, a prosecutor at the Cheongju District Prosecutor's Office, whose future is dark due to the improper behavior of sponsoring prosecutors in the past. When he is troubled by the redevelopment incident, he begins to take risks as he is in charge of the murder case of a high school girl. His intuition as a prosecutor and his opportunist instincts make him take risks.