Kwon Hyeok-Pung

Park Duk Joon is an old man living by himself. Every night, he suffers from insomnia attacks brought on by disturbing flashes from his dark past. He tries in vain to pray and find solace in religion. His only friend is Mrs. Lee, a church elder who gives him weekly church bulletins. Mrs. Lee invites him to a testimonial at her church. Duk Joon is surprised to see the face of the speaker. He is Lim Gwang Han, Duk Joon's former superior officer from his days as a police interrogator in the 80s. They meet for the first time in years, Gwang Han brings up Duk Joon's painful past again.

Eighteen year-old Tae-hoon and Mi-jung have been going out for 100 days. During winter break they decide to take a trip to the beach to celebrate their anniversary. When they are back home after a few days, they have to confront a harsh situation – Mi-jung’s parents don’t allow them to see each other until they become college students. Tae-hoon struggles to keep their love and wanders around Mi-jung but she is eventually changed and avoids him as her parents wish. Winter turns to spring, and Tae-hoon and Mi-jung both turn nineteen.

A serial killer named Shin-Hyun gives himself up to police. He is imprisoned, awaiting the death sentence for his crimes. Yet the killings do not stop. They continue with all the same characteristics trademarks of the Shin-Hyun serial killings. Detective Mi Yun, and her newly appointed partner, Detective Kang, are assigned to the case. Mi Yun and Kang have difficulty working with each other. Detective Kang follows a new suspect, Huh, and eventually catches him in the act of brutally murdering a woman in a crowded techno bar. Huh is taken into custody after Kang shoots and wounds him at the scene of the crime. Yet the murders continue in copy-cat style. The police desperately hunt for new leads. They start an in-depth investigation of a Doctor Chu, who is Shin-Hyun's psychiatrist. But progress is frustrated when Dr Chu becomes a victim of the copy-cat killings herself. The murdered psychiatrist's former boyfriend quickly becomes the prime suspect, a fanatical character named Choi.