Through the Darkness

Overview
A group of determined detectives delves into the psychology of killers during a period when Korea faces its first wave of serial murders, sending shockwaves through the country. Inspired by real-life events, their investigation unveils the chilling complexities of crime and the human psyche.
Episodes
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1

Red Cap Incident
Song Ha-yeong is on the trail of a criminal notorious for preying on young women. Meanwhile, Kook Yeong-su aims to assemble a team of experts in crimi...
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2

Habits of Criminals
Ha-yeong seeks insight from a criminal to grasp the motivations behind a murderer's actions. Following an arrest, a shocking interrogation unfolds, pr...
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3

Ha-yeong Meets Tae-gu Again
The horrific killing of a young child draws the focus of Ha-yeong and Yeong-su. Tensions rise as a resolute police captain confronts the investigative...
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4

What Must We Remember?
During a search of a suspect's residence, the police uncover a horrifying find. Meanwhile, Ha-yeong and Yeong-su become increasingly exasperated as th...
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5

Looking into the Minds of Evil
A corrupt new police chief creates significant challenges for the team. The shocking murders of a professor and his wife set off a chain of violent ki...
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6

The Man With the Hiking Boots
Yoon Tae-gu and Kim Bong-sik are determined to establish clear boundaries for the behavioral analysis team. Meanwhile, a complicated investigation lea...
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7

A Scary Wolf Inside the Rabbit Burrow
On his birthday, Ha-yeong enjoys moments with his mother. Meanwhile, the investigators are grappling with intense pressure as they pursue two dangerou...
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8

There Are No Perfect Crimes
The pursuit takes a dangerous twist. When a suspect demands to speak with a senior officer, Ha-yeong devises a clever strategy. Meanwhile, the quest t...
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9

Becoming the Monster
The behavioral analysis team consents to an interview with a reporter. Ha-yeong aims to delve into the psyche of the murderer, but the experience prov...
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10

I Just Liked It
Through a series of interviews and crime scene recreations, Ha-yeong and the police explore the dark mind and troubled history of a merciless suspect.
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11

The Victims And Their Families
After a devastating incident, Ha-yeong is compelled to confront the psychological toll his job has taken on him. At the same time, the mysterious disa...
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12

The Hearts of Criminals
The police, along with the analysis team, delve into the case of a murder suspect infamous for his ability to enchant women and coax them into his veh...