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The Best Episodes of Through the Darkness Season 1

Every episode of Through the Darkness Season 1 ranked from best to worst. Discover the Best Episodes of Through the Darkness Season 1!

Binge this in 13h 34m•Peaking at 8.8/10

A team of tenacious detectives study the minds of murderers at a time when Korea's first serial murders terrorized the nation. Based on true events.

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Episode Rankings

  1. #1 Fan Favorite
    Through the Darkness Season 1 Episode 1 - Red Cap Incident
    8.0/10(102 votes)

    #1 - Red Cap Incident

    S1:E1

    Song Ha-yeong pursues a criminal known for targeting young women. Kook Yeong-su looks to form a team of criminal behavioral analysts.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  2. Through the Darkness Season 1 Episode 2 - Habits of Criminals
    8.2/10(85 votes)

    #2 - Habits of Criminals

    S1:E2

    Ha-yeong consults a criminal to understand a killer’s motives. An arrest leads to a startling interrogation session and a break in the case.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  3. Through the Darkness Season 1 Episode 3 - Ha-yeong Meets Tae-gu Again
    8.2/10(71 votes)

    #3 - Ha-yeong Meets Tae-gu Again

    S1:E3

    The grisly murder of a child catches the attention of Ha-yeong and Yeong-su. A determined police captain clashes with the team.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  4. Through the Darkness Season 1 Episode 4 - What Must We Remember?
    8.3/10(71 votes)

    #4 - What Must We Remember?

    S1:E4

    When a suspect’s home is searched, the police make a gruesome discovery. Ha-yeong and Yeong-su grow frustrated as the investigation continues.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  5. Through the Darkness Season 1 Episode 5 - Looking into the Minds of Evil
    8.1/10(67 votes)

    #5 - Looking into the Minds of Evil

    S1:E5

    A crooked new police chief causes trouble for the team. The deaths of a professor and his wife touch off a series of brutal murders.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  6. Through the Darkness Season 1 Episode 6 - The Man With the Hiking Boots
    8.1/10(63 votes)

    #6 - The Man With the Hiking Boots

    S1:E6

    Yoon Tae-gu and Kim Bong-sik seek to set boundaries on the behavioral analysis team. A complex investigation sends the police down a twisted path.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  7. Through the Darkness Season 1 Episode 7 - A Scary Wolf Inside the Rabbit Burrow
    8.4/10(64 votes)

    #7 - A Scary Wolf Inside the Rabbit Burrow

    S1:E7

    Ha-yeong spends time with his mother on his birthday. With two killers on the loose, the investigators are faced with high-pressure stakes.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  8. Through the Darkness Season 1 Episode 8 - There Are No Perfect Crimes
    8.4/10(65 votes)

    #8 - There Are No Perfect Crimes

    S1:E8

    A chase takes a risky turn. When a suspect asks for a high-ranking officer, Ha-yeong hatches a plan. A search for victims' bodies continues.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  9. Through the Darkness Season 1 Episode 9 - Becoming the Monster
    8.3/10(60 votes)

    #9 - Becoming the Monster

    S1:E9

    The behavioral analysis team agrees to an interview with a journalist. Ha-yeong seeks to enter the killer’s mind, but it takes a toll on him.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  10. Through the Darkness Season 1 Episode 10 - I Just Liked It
    8.7/10(65 votes)

    #10 - I Just Liked It

    S1:E10

    During interviews and crime scene reenactments, Ha-yeong and the police dive deep into a ruthless suspect's psyche and past trauma.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  11. Through the Darkness Season 1 Episode 11 - The Victims And Their Families
    8.5/10(60 votes)

    #11 - The Victims And Their Families

    S1:E11

    A horrific accident forces Ha-yeong to reflect on the mental impact of his work. Meanwhile, two people go missing from a karaoke bar, raising suspicions.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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  12. Through the Darkness Season 1 Episode 12 - The Hearts of Criminals
    8.8/10(68 votes)

    #12 - The Hearts of Criminals

    S1:E12

    Police and the analysis team investigate a murder suspect who is known for charming women and luring them into his car.

    Director:Park Bo-ram
    Writer:Seol Yi-na

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Season 1 Ratings Summary

"Red Cap Incident" is the best rated episode of "Through the Darkness" season 1. It scored 8/10 based on 102 votes. Directed by Park Bo-ram and written by Seol Yi-na, it aired on 1/14/2022. This episode is rated 0.2 points higher than the second-best, "Habits of Criminals".