Character Relationship Map: Trap

Characters

• Yoon Seo-young (played by Im Hwa-young) — protagonist

  Highly respected criminal profiler who collaborates with veteran detective Ko Dong-kook to investigate the mysterious disappearance of Woo-hyun's wife and son, eventually piecing together the truth.

• Ko Dong-kook (played by Sung Dong-il) — protagonist

  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.

• Kang Woo-hyun (played by Lee Seo-jin) — supporting

  Highly successful and beloved news anchor whose seemingly perfect life and political ambitions are shattered when his wife and son mysteriously vanish during a wedding anniversary trip.

• Kim Shi Hyun [Woo Hyun's secretary] (played by Lee Ju-bin) — supporting
• Gang Shi Woo [Woo Hyun's son] (played by Oh Han-kyul) — minor
• Hong Won Tae [Representative] (played by Oh Ryoong) — minor
• Go Min Joo [Dong Gook's daughter] (played by Choi Myeong-bin) — minor
• Bae Nam-Soo (played by Jo Dal-hwan) — supporting
• Detective Gwang Su Dae (played by Kwak Min-ho) — minor
• Profiler Suk [Seo Yeong's superior] (played by Choi Hong-il) — minor
• [Hunter] (played by Oh Man-seok) — cameo

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Kang Woo-hyun → Gang Shi Woo [Woo Hyun's son] (Father and Son) — A paternal bond that serves as the emotional core and psychological trigger for Woo-hyun's actions.

  "Woo-hyun's son's wrecked corpse is discovered; Woo-hyun's initial testimony centers on his missing family, later revealed as a manufactured catalyst....

• Kang Woo-hyun → [Hunter] (Predator and Prey) — A shifting dynamic where the hunted aspirant seeks to infiltrate and ultimately subvert the hunting hierarchy.

  "Woo-hyun claims he was hunted; later he passes a test to join them, revealing his desire to control the inferior species and clash with their leaders...

• Hong Won Tae [Representative] → [Hunter] (Leader and Enforcers) — A hierarchical structure where the CEO provides resources and direction to the field operatives.

  "Hong operates as the public face and financial backer of the hunting group; his ostentatious psychopathy aligns with their activities until his death...

• Ko Dong-kook → Bae Nam-Soo (Senior Colleagues) — A professional bond that transforms into a personal vendetta following a colleague's suspicious death.

  "Detective Bae falls from the hospital and dies; Dong-kook believes he was murdered, which solidifies his resolve to pursue the case aggressively."

• Ko Dong-kook → Go Min Joo [Dong Gook's daughter] (Father and Daughter) — A stable familial anchor that contrasts with Dong-kook's increasingly dangerous professional life.

  "Go Min Joo is Dong-kook's daughter; Dong-kook's personal advice to Woo-hyun about losing a child reflects his paternal experience and emotional stake...

• Yoon Seo-young → Profiler Suk [Seo Yeong's superior] (Subordinate and Superior) — A standard hierarchical relationship strained by the profiler's rogue investigative methods.

  "Suk is listed as Seo-young's superior; Seo-young's independent media broadcast and discovery of her own blind spot suggest professional tension and a...

• Ko Dong-kook → Detective Gwang Su Dae (Investigative Colleagues) — A supporting investigative link that reinforces the police effort against internal and external pushback.

  "Detective Gwang Su Dae is mentioned as digging deeper into Woo-hyun's case alongside Dong-kook's acquaintances despite institutional resistance."

• Kang Woo-hyun → Kim Shi Hyun [Woo Hyun's secretary] (Employer and Employee) — A peripheral professional link where Woo-hyun maintains absolute control over his staff and communications.

  "Kim Shi Hyun serves as Woo-hyun's secretary; Woo-hyun's controlled public persona and hidden psychopathy likely extend to strict information manageme...

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Kang Woo-hyun → Hong Won Tae [Representative] (Covert Accomplices) — A hidden partnership built on mutual benefit and shared criminal objectives.

  "Hong visits Woo-hyun in the hospital and is revealed as an accomplice covering up his group's mistakes, funding the operation behind the scenes."

• Kang Woo-hyun → Ko Dong-kook (Investigator vs Suspect) — A tense cat-and-mouse dynamic where the detective pursues the truth while the suspect orchestrates misdirection.

  "Dong-kook is dispatched to investigate Woo-hyun's claims; Woo-hyun withholds information and actively manipulates the investigation to serve his own...

• Kang Woo-hyun → Yoon Seo-young (Profiler vs Target) — Professional suspicion escalates into direct physical violence as Woo-hyun's facade crumbles.

  "Seo-young joins the investigation to profile Woo-hyun; Woo-hyun gravely injures her after she uncovers his true psychopathic nature."

• Ko Dong-kook → Yoon Seo-young (Investigative Partners) — Two investigators overcome initial friction to form a tightly coordinated team.

  "Seo-young initially refuses Dong-kook's help but they later collaborate to gather evidence at Woo-hyun's house despite institutional pushback."

• Ko Dong-kook → Hong Won Tae [Representative] (Investigator vs Criminal Mastermind) — Ko Dong-kook's relentless investigation poses a direct threat to Hong Won Tae's criminal empire and personal safety.

  "In episode 7, Dong Guk\u2019s acquaintances dig deeper into Woo Hyun's case, directly threatening Hong Won Tae's operations."

• Yoon Seo-young → Hong Won Tae [Representative] (Investigator vs Antagonist) — Yoon Seo-young's public provocation directly triggers a violent attack orchestrated by Hong Won Tae.

  "In episode 5, Seo-young decides to go on the news and claim she and her team are close to catching the culprit, and CEO Hong decides to kill them bef...

• Hong Won Tae [Representative] → Bae Nam-Soo (Killer vs Victim) — Hong Won Tae's criminal group is responsible for the suspicious death of Detective Bae Nam-Soo, likely to silence or hinder the investigation.

  "In episode 2, Detective Bae has fallen from the top of the hospital and died, and Dong Guk believes Bae was murdered by someone linked to the case."

Story Analysis

A psychological thriller tracing a fabricated hunt, police investigation, and the emergence of a calculated psychopath.

Plot Progression

1. The Hunted Victim — Woo-hyun arrives at the hospital claiming persecution, setting off a complex investigation. Detective Bae's suspicious death raises the stakes, while profiler Yoon Seo-young joins the team. CEO Hong v...
2. Uncovering the Accomplice — The discovery of Woo-hyun's son's body validates his claims and intensifies the police pursuit. The team analyzes the psychological profile of the suspect, noting the thin line between normalcy and ps...
3. Investigative Escalation — Dong-kook and Seo-young bypass official interference to gather evidence at Woo-hyun's residence. The investigation gains momentum as they piece together the network behind the hunt. Seo-young decides...
4. The Psychopath's Mask — Seo-young's broadcast successfully provokes Hong, leading to a violent confrontation where he is caught and eliminated. Woo-hyun's true nature is clinically identified, revealing the 1mm difference th...
5. Infiltration and Mutiny — Dong-kook is abducted and tortured, testing the resilience of the investigative team. Woo-hyun successfully passes the hunters' trial, revealing his ambition to join a superior species. The group reje...