Plot Analysis Summary
The single-season narrative moves from public digital executions to a contested investigation into justice, revenge, political obstruction, and the survival of the masked voting system.
Story Structure — 5 Plot Phases
Season 1: Votes Begin
The first two Killing Votes establish a public execution mechanism and force the police to create a special investigation unit. The car explosion turns the abstract threat into a personal crisis.
Key Events
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The First Killing Vote — A public vote begins determining whether a vicious criminal will receive the death penalty.
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Special Investigation Begins — The police launch a Special Investigation Headquarters to stop the killings and identify the organizer.
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Second Vote Announced — A second Killing Vote begins, confirming that the threat is continuing rather than being an isolated incident.
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Police Struggle to Intervene — The police attempt to prevent the death penalty while the public voting process proceeds.
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Car Explosion — The car carrying the second victim explodes, injuring an investigator and the designated victim. Characters: Joo Hyun
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Joo Hyun Falls into Despair — After witnessing the explosion's consequences, Joo Hyun falls into despair as an earlier prison story keeps resurfacing. Characters: Joo Hyun
Season 1: Prison Connections
Joo Hyun joins the special team and is sent to prison to investigate the case's deeper history. A video forecasting the third vote suggests that the campaign is carefully planned.
Key Events
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A Prison Story Repeats — A prisoner's past story becomes a recurring element in the investigation and shapes the case's moral background.
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Joo Hyun Enters the Inquiry — Joo Hyun is recruited into the special team and is sent to prison to learn the full story of the current case. Characters: Joo Hyun
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Third Vote Foreshadowed — A video appears predicting the third Killing Vote, raising the sense of an organized and escalating campaign.
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Prisoner Joins the Police — A key prisoner joins the police on the morning of the next vote, changing the investigation's access to inside information.
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Captain Oh Becomes the Target — The police are dispatched to rescue Captain Oh after the next designated victim is revealed.
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Identity Trail Narrows — The rescue operation brings the police closer to identifying the person behind the masked voting campaign.
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Joo Hyun Chases a Suspect — Joo Hyun joins the pursuit of a person suspected of being connected to the Killing Vote. Characters: Joo Hyun
Season 1: The False Capture
A rescue mission and a suspect pursuit bring the police closer to the organizer. The apparent arrest fails to resolve the case, and the true identity is exposed.
Key Events
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Suspect Confrontation — The investigation reaches a direct confrontation with the person suspected of attempting to kill Captain Oh.
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False Arrest Announcement — The police announce that they have arrested the masked organizer, but the announcement does not end the threat.
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The Real Identity Emerges — The supposed arrest is exposed as insufficient when the true identity of the masked organizer is revealed.
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Eight-Year-Old Case Revealed — The story jumps back eight years to disclose the case that connects the investigators and the prisoner's history.
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Daughter's Death — The earlier case is revealed to include the death of a young daughter, explaining the lasting emotional damage behind the investigation.
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Private Revenge — A grieving parent is revealed to have killed the person responsible instead of relying on the legal system.
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Accomplice Identified — The identity of an accomplice connected to the dead criminal is disclosed, widening the scope of the old case.
Season 1: The Old Wound
The narrative returns to an eight-year-old case involving a daughter's death, personal revenge, and an accomplice. This history explains why legal justice has become morally unstable.
Key Events
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Accomplice Identified — The identity of an accomplice connected to the dead criminal is disclosed, widening the scope of the old case.
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Public Support Grows — Public support for the Killing Vote increases, making the police response more politically and socially difficult.
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Letters Become Evidence — The police realize that Lee Min-soo sent letters to a prisoner under the identity of a devoted fan. Characters: Lee Min-soo
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Accusation Triggers Escape — After Lee Min-soo is accused of being the real masked organizer, he escapes. Characters: Lee Min-soo
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Voting System Stolen — Lee Min-soo steals the Killing Vote system while the investigation continues to uncover the organizer's identity. Characters: Lee Min-soo
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Secret Room Infiltration — Joo Hyun infiltrates Lee Min-soo's secret room while searching for evidence about the stolen system. Characters: Joo Hyun, Lee Min-soo
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Investigation Is Obstructed — The investigation into Lee Min-soo slows because of Min Ji-young's interference. Characters: Min Ji-young, Lee Min-soo
Season 1: Final Vote
Public support grows while evidence points toward Lee Min-soo and institutional interference slows the investigation. The season ends with a canceled execution, an underwater struggle over the voting program, and a new masked figure.
Key Events
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Lee Min-soo Is Put to Vote — The masked organizer attempts to judge Lee Min-soo by placing him into the Killing Vote. Characters: Lee Min-soo
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Scheme Causes a Death — Lee Min-soo is killed through Min Ji-young's scheme, outside the ordinary Killing Vote procedure. Characters: Min Ji-young, Lee Min-soo
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Self-Submission to the Vote — A central prisoner attempts suicide by placing himself into the Killing Vote.
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Attempt to Stop the Suicide — Another participant tries to stop the self-submitted Killing Vote before the execution can occur.
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Execution Is Aborted — The majority votes to abstain from executing the submitted prisoner, so the Killing Vote is canceled.
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Program Handover Interrupted — As the voting program is about to be handed over, a police participant tackles the person carrying it.
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Fall into Deep Water — The tackle sends both participants deep underwater, leaving the program's fate uncertain.
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A New Masked Figure — Someone picks up the masked organizer's mask and puts it on, ending the season with a new unresolved identity.
People are busy watching the screen. The person wearing a mysterious mask so called 'Gaetal' appears, and the Killing Vote begins.