Story Structure — 5 Plot Phases
Threats Behind the Routine
Go Dong-ho faces recurring death threats while his family argues about money, study abroad, and their unstable routine. A solar flare disrupts communications just before an unsettling call reaches him.
Key Events
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Death Threats Continue — Go Dong-ho faces recurring death threats before returning to work. Characters: Go Dong-ho
Location: Go Dong-ho's home
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Family Financial Argument — The family argues about money, study abroad, and its troubled routine. Characters: Go Dong-ho, Jo Yeon-soo, Go Kyeong-rim
Location: Family home
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Solar Flare Disruption — A solar flare disrupts satellite-based communications. Characters: Go Dong-ho
Location: Go Dong-ho's home
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The Threatening Call — A caller knows intimate details and cites criminal law while threatening Go Dong-ho. Characters: Go Dong-ho
Location: Go Dong-ho's home
A Voice from the Past
The caller knows intimate details about Go Dong-ho's home and suggests that he has made a serious mistake. Go Dong-ho then hears Jo Yeon-soo speaking from the house, despite learning that she was supposedly killed a year earlier.
Key Events
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Yeon-soo Answers — Go Dong-ho hears Jo Yeon-soo speaking from the house despite her apparent danger. Characters: Go Dong-ho, Jo Yeon-soo
Location: Family home
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A Death One Year Earlier — Go Dong-ho learns that Jo Yeon-soo was supposedly killed a year earlier. Characters: Go Dong-ho, Jo Yeon-soo
Location: Go Dong-ho's home
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Black Carnival Identified — A black Carnival with plate 67S2232 may be linked to the attack. Characters: Go Dong-ho
Location: Outside the family home
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Detective Doubts the Story — The detective initially treats Go Dong-ho's account as delusion. Characters: Go Dong-ho, Seocho Police Station Detective
Location: Seocho Police Station
The House Under Attack
A black Carnival may be connected to the attack, while a detective initially doubts Go Dong-ho's account. Jo Yeon-soo confirms that an intruder has entered the house, forcing Go Dong-ho to warn her to escape.
Key Events
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Intruder Confirmed — Jo Yeon-soo confirms that an intruder has entered the house. Characters: Jo Yeon-soo, Seocho Police Station Detective
Location: Family home
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Warning to Escape — Go Dong-ho warns Jo Yeon-soo to escape while the danger approaches. Characters: Go Dong-ho, Jo Yeon-soo
Location: Family home
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The Phone Crosses Time — The calls suggest communication across different points in time. Characters: Go Dong-ho, Jo Yeon-soo
Location: Unspecified phone connection
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Go Dong-ho Becomes Fugitive — Police search for Go Dong-ho after suspecting him of murdering his wife. Characters: Go Dong-ho, Seocho Police Station Detective
Location: Various locations
Family Trust Collapses
The police search for Go Dong-ho after suspecting him of murdering his wife. Go Kyeong-rim questions him in tears, and he promises to restore the family even though she no longer trusts him.
Key Events
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Kyeong-rim's Distraught Call — Go Kyeong-rim asks whether Go Dong-ho killed her mother. Characters: Go Dong-ho, Go Kyeong-rim
Location: Phone connection
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Promise to Restore Family — Go Dong-ho denies the accusation and promises to restore their family. Characters: Go Dong-ho, Go Kyeong-rim
Location: Phone connection
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Do Jae-hyeon's Safehouse — Do Jae-hyeon helps Go Dong-ho hide and obtain a working phone. Characters: Go Dong-ho, Do Jae-hyeon
Location: Hideout
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Damaged Device Examined — Kim Gyoo-soo assists Go Dong-ho with the damaged device. Characters: Go Dong-ho, Kim Gyoo-soo
Location: Unspecified location
Evidence Across Time
Do Jae-hyeon helps Go Dong-ho hide, while Kim Gyoo-soo assists with the damaged device. A possible police frame-up, a fish-marked envelope, and a hidden knife point toward evidence that Go Dong-ho plans to recover, but the final confrontation is not provided.
Key Events
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Damaged Device Examined — Kim Gyoo-soo assists Go Dong-ho with the damaged device. Characters: Go Dong-ho, Kim Gyoo-soo
Location: Unspecified location
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Possible Police Framing — Go Dong-ho learns that a police officer may have framed him. Characters: Go Dong-ho, Seocho Police Station Detective
Location: Unspecified location
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Fish-Marked Envelope — An envelope marked with a fish drawing is linked to the crime. Characters: Go Dong-ho
Location: Unspecified location
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Knife Hidden for a Year — Jo Yeon-soo says she will hide the officer's knife in a hospital examination room for a year. Characters: Go Dong-ho, Jo Yeon-soo
Location: Hospital examination room
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Evidence Recovery Arranged — Go Dong-ho arranges to recover the hidden evidence; the final confrontation remains unresolved. Characters: Go Dong-ho, Jo Yeon-soo
Location: Hospital examination room