Grizzled veteran detective who takes up the case of the missing family and teams up with profiler Yoon Seo-young to uncover what really happened during the trip.
A tense cat-and-mouse dynamic where the detective pursues the truth while the suspect orchestrates misdirection.
Yoon Seo-young and Ko Dong-kook complement each other's investigative blind spots, driving the plot forward.
Two investigators overcome initial friction to form a tightly coordinated team.
Kang Woo-hyun turns the tables by kidnapping and torturing Ko Dong-kook to demonstrate his commitment to the criminal group.
Ko Dong-kook's relentless investigation poses a direct threat to Hong Won Tae's criminal empire and personal safety.
A professional bond that transforms into a personal vendetta following a colleague's suspicious death.
A stable familial anchor that contrasts with Dong-kook's increasingly dangerous professional life.
A supporting investigative link that reinforces the police effort against internal and external pushback.
Explore the full interactive character relationship map of Trap