Detective Seo Do-cheol (HWANG Jung-min) and his Major Crime Investigation
Division tirelessly track down criminals day and night, often at the expense of
their personal lives.When the murder of a professor reveals links to past cases, suspicions of a
serial killer arise, plunging the country into turmoil. As Major Crimes delves
into the investigation, the killer taunts them by stylealy releasing a teaser
online, indicating the next victim, and intensifying the chaos.To tackle the escalating threat, the team brings in idealistic rookie officer
Park Sun-woo (JUNG Hae-in), leading to unexpected twists in the case’s
trajectory.
