Confession of Murder (2012) Timeline Explained – Every Event in Order

Jung Hyun-sik faked his death to become invisible to the real killer, allowing him to work behind the scenes with Choi. He underwent plastic surgery to assume a new identity and collaborated with Choi to lure out the actual serial killer. This elaborate plan was designed to trap the true murderer who had escaped justice for nearly two decades.

Foreshadowing: Earlier, Hyun-sik calls Choi desperately before apparently leaping to his death, establishing his emotional investment in catching the killer.

• jung hyun-sik
• fake death
• plastic surgery
• choi hyeong-goo
• conspiracy

The true killer is a mysterious figure referred to only as "J", who appears as a masked man claiming to be the actual serial killer. J taunts both Lee Doo-seok and Choi during televised debates, revealing intimate details about the murders and Choi's past. While his exact identity is never fully revealed in the film, J is the one responsible for the original ten murders and the videotaped killing of Soo-yeon.

Foreshadowing: J first appears during the televised debate, calling in to taunt Lee and knowing details only the real killer would know.

• killer j
• real killer
• masked killer
• true identity
• taunts

Lee Doo-seok did not write the memoir and was not the actual killer. He was a fraud who likely sought fame and attention by falsely confessing to the notorious murders. His public visits to victims' families and dramatic apology tour were performed for media attention rather than genuine remorse.

Foreshadowing: Choi dismisses Lee as a fraud from the beginning, skeptical of his sudden confession.

• lee doo-seok
• fraud
• false confession
• memoir
• i am the murderer

Soo-yeon was the 11th victim who was kidnapped by the real killer. A videotape discovered by investigators shows her tied up and killed on the exact date the statute of limitations would expire. Her murder was used by the killer as a final twisted message, demonstrating that he could kill even as justice was about to elude him forever.

Foreshadowing: The mother of the missing Soo-yeon is part of Han Ji-soo's group seeking revenge.

• soo-yeon
• 11th victim
• videotape
• missing victim
• statute of limitations

Choi collaborated with Hyun-sik because both were consumed by their failure to catch the real killer. Having watched Hyun-sik jump from a vehicle in apparent despair, Choi agreed to help him disappear so they could work together to trap the actual murderer. Their plan involved using the fraudulent confession of Lee Doo-seok as bait to draw out the real killer.

Foreshadowing: Choi's guilt over his failure in 1990 and his alcoholism stem from the unsolved case.

• detective choi
• jung hyun-sik
• collaboration
• plan
• conspiracy

The statute of limitations creates urgent time pressure because once it expires, the killer cannot be legally prosecuted for the murders. The clock ticks from 1990 through 2008, and the killer deliberately surfaces to taunt investigators as the deadline approaches. The final videotape shows Soo-yeon's murder on the exact expiry date, adding to the psychological torment.

Foreshadowing: The case begins in 1986-1990, and the film builds to the 2008 deadline.

• statute of limitations
• expiry
• time limit
• legal deadline
• prosecution

Led by Han Ji-soo, the victims' families orchestrated a complex abduction. They released snakes into Lee's hotel pool to create chaos, then staged a fake medical convoy to smuggle him away. Lee was unconscious when they moved him to a motel, planning to kill him as revenge. Choi ultimately rescued Lee but warned him to stay silent.

Foreshadowing: The families' desperation grows as the statute of limitations nears its end.

• victims families
• han ji-soo
• abduction
• snakes
• revenge plot

During the final confrontation, Choi stabs J with a pen loaded with venom (the same weapon Han Ji-soo intended to use). This act prevents J from carrying out another murder. While J escapes immediate arrest due to the expiring statute, Choi's intervention stops any further killings and represents a desperate attempt at justice despite the legal system's failure.

Foreshadowing: Han Ji-soo prepares a venom-loaded pen earlier, suggesting this method of justice.

• pen
• stabbing
• j
• confrontation
• venom
• final chase

After his release in 2012, Choi is greeted by the media and the victims' families who show gratitude for his actions. The case leads to a significant legal change: the statute of limitations is extended to 25 years, allowing more time for prosecutors to pursue violent criminals. This reform represents the positive legacy of Choi's difficult choices.

Foreshadowing: The film ends with this legal reform as a bittersweet outcome.

• prison release
• 2012
• statute extension
• 25 years
• legal reform

The real killer (J) allowed Lee Doo-seok to publish the memoir and take credit because it amused him to watch the chaos unfold. By surfacing through a false confession, J could observe the investigation, taunt Choi, and revel in the confusion. His ego and desire to play mind games with investigators drove this decision rather than any desire for forgiveness or fame.

Foreshadowing: J's calls during the televised debate reveal his enjoyment of the public spectacle.

• killer motivation
• ego
• manipulation
• public attention
• taunts