Story Structure — 5 Plot Phases
A Call From The Killer
Baek Sun-ju receives a disturbing call from a stranger claiming responsibility for eleven deaths. The caller requests an interview and describes the apparently unrelated murders.
Key Events
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Disturbing Telephone Call — Baek Sun-ju receives a call from a stranger claiming responsibility for eleven murders. Characters: Baek Sun-ju
Location: Baek Sun-ju's workplace
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The Interview Request — The caller requests an interview with Baek Sun-ju about the killings. Characters: Baek Sun-ju
Location: Telephone conversation
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Eleven Deaths Described — The caller describes eleven deaths involving multiple forms of violence and partial remains.
Location: Telephone conversation
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Random Crimes Reconsidered — Police and forensic reports indicate that the murders were initially treated as unrelated crimes.
Location: Police and forensic records
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The Specialist Psychiatrist — During the interview, the murderer identifies himself as a specialist psychiatrist. Characters: Baek Sun-ju
Location: Interview setting
Medicine Of Revenge
During the interview, the murderer presents himself as a specialist psychiatrist. He frames the killings as treatment for people who psychologically wounded his patients.
Key Events
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The Specialist Psychiatrist — During the interview, the murderer identifies himself as a specialist psychiatrist. Characters: Baek Sun-ju
Location: Interview setting
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Victims As Cancerous Tumors — The murderer claims his victims psychologically wounded his patients and became cancerous tumors. Characters: Baek Sun-ju
Location: Interview setting
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Murder As Treatment — He argues that killing the victims was medical treatment designed to remove sources of psychological suffering. Characters: Baek Sun-ju
Location: Interview setting
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Revenge And Prognosis — He calls revenge an effective trauma treatment and cites one exceptionally good prognosis. Characters: Baek Sun-ju
Location: Interview setting
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Baek Challenges His Logic — Baek argues that the medical explanation rationalizes a desire to kill. Characters: Baek Sun-ju
Location: Interview setting
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Ethics Turned Against Baek — The murderer questions whether Baek places an exclusive story above public safety. Characters: Baek Sun-ju
Location: Interview setting
The Rooftop Threat
The murderer reveals a new intended victim connected to a child whose hand was destroyed. He describes telephone conditioning and a text message that could trigger a fatal jump.
Key Events
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Ethics Turned Against Baek — The murderer questions whether Baek places an exclusive story above public safety. Characters: Baek Sun-ju
Location: Interview setting
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The Next Intended Victim — The murderer reveals that his next target is connected to a child whose hand was destroyed. Characters: Baek Sun-ju
Location: Interview setting
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Rooftop Conditioning — He claims repeated calls hypnotized and conditioned the intended target to associate the rooftop with flight. Characters: Baek Sun-ju
Location: School rooftop
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The Fatal Text Message — The murderer says one text message will cause the conditioned target to jump. Characters: Baek Sun-ju
Location: School rooftop
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Baek Protests The Target — Baek protests that the intended target is still a child. Characters: Baek Sun-ju
Location: Interview setting
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Preventive Murder Justified — The murderer argues that eliminating the target may prevent him from becoming a worse monster. Characters: Baek Sun-ju
Location: Interview setting
A False Trail
An investigator is lured to a meeting by a false tip. The murderer insists that the deception was intended as treatment rather than harm.
Key Events
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Preventive Murder Justified — The murderer argues that eliminating the target may prevent him from becoming a worse monster. Characters: Baek Sun-ju
Location: Interview setting
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False Tip Meeting — An investigator is lured to a meeting by a false tip.
Location: Meeting location
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Treatment Rather Than Harm — The murderer claims the deception brought the investigator there for treatment rather than harm.
Location: Meeting location
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Han Sang-woo Exposed — The murderer identifies Han Sang-woo as the person who stole a secret ledger connected to Ilshin Group. Characters: Han Sang-woo
Location: Meeting location
The Ledger Revelation
The murderer accuses Han Sang-woo of stealing an Ilshin Group ledger and describes coercion involving a staged accident. The supplied dialogue ends before the explanation is completed.
Key Events
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Han Sang-woo Exposed — The murderer identifies Han Sang-woo as the person who stole a secret ledger connected to Ilshin Group. Characters: Han Sang-woo
Location: Meeting location
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The Staged Accident — The murderer claims Han Sang-woo was trapped by a staged accident and forced to leak investigation details. Characters: Han Sang-woo
Location: Investigation context
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Unresolved Ledger Motive — The supplied dialogue ends while the murderer is explaining why Han Sang-woo took the ledger. Characters: Han Sang-woo
Location: Meeting location