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The Worst Episodes of Inspector Koo

Every episode of Inspector Koo ranked from worst to best. Explore the Worst Episodes of Inspector Koo!

Binge this in 13h 46m•Peaking at 8.9/10

A reclusive ex-cop reenters the game as an insurance investigator, searching for clues in crime scenes perfectly staged by a serial killer in her midst.

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Episode Rankings

  1. #1 Worst Episode
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    Inspector Koo Season 1 Episode 1 - Episode 1
    8.0/10(65 votes)

    #1 - Episode 1

    S1:E1

    In need of a big win at work, Na Je-hui plays on Koo Kyung-yi's strengths and weaknesses to enlist her help on a missing person's case.

    Director:Unknown
    Writer:Unknown

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  2. Inspector Koo Season 1 Episode 2 - Episode 2
    8.4/10(53 votes)

    #2 - Episode 2

    S1:E2

    Kyung-yi suspects there's more to this accident than meets the eye. Reuniting with an old classmate, Song Yi-kyung hears about a former teacher's fate.

    Director:Unknown
    Writer:Unknown

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  3. Inspector Koo Season 1 Episode 3 - Episode 3
    8.5/10(50 votes)

    #3 - Episode 3

    S1:E3

    A news story about a criminal's light sentence establishes the next target for "K," who sets the scene at a bustling university campus.

    Director:Unknown
    Writer:Unknown

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  4. Inspector Koo Season 1 Episode 4 - Episode 4
    8.5/10(50 votes)

    #4 - Episode 4

    S1:E4

    Santa's chase after "K" puts the team on high alert, especially Kyung-yi. A spooked co-conspirator distances himself from the criminal mastermind.

    Director:Unknown
    Writer:Unknown

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  5. Inspector Koo Season 1 Episode 6 - Episode 6
    8.5/10(42 votes)

    #5 - Episode 6

    S1:E6

    Kyung-yi sifts through Yi-kyung's playbooks to find out the next target. An outcast's account takes the team to an IT company headed by a public figure.

    Director:Unknown
    Writer:Unknown

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  6. Inspector Koo Season 1 Episode 9 - Episode 9
    8.5/10(41 votes)

    #6 - Episode 9

    S1:E9

    Yi-kyung joins hands with Yong-suk, replacing a down-in-the-dumps Kyung-yi who falls out of favor with the strong-handed director.

    Director:Unknown
    Writer:Unknown

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    The 20 BEST Episodes of Inspector Koo

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  7. Inspector Koo Season 1 Episode 5 - Episode 5
    8.6/10(44 votes)

    #7 - Episode 5

    S1:E5

    Jung Jeong-yeon thinks back to a traumatic incident in her niece's past. Following a hunch that "K" might leave the country, Kyung-yi's team sets a trap.

    Director:Unknown
    Writer:Unknown

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  8. Inspector Koo Season 1 Episode 7 - Episode 7
    8.6/10(43 votes)

    #8 - Episode 7

    S1:E7

    In a high-stakes game of cat and mouse, Kyung-yi tries to find and stop the deadly plans Yi-kyung has set in place for Ko Dam's public event.

    Director:Unknown
    Writer:Unknown

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  9. Inspector Koo Season 1 Episode 8 - Episode 8
    8.6/10(43 votes)

    #9 - Episode 8

    S1:E8

    Yi-kyung's loss plunges her into a world of reckless darkness. Both Yi-kyung and Kyung-yi seek answers on the inexplicable outcome of the event.

    Director:Unknown
    Writer:Unknown

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  10. Inspector Koo Season 1 Episode 11 - Episode 11
    8.6/10(44 votes)

    #10 - Episode 11

    S1:E11

    Yong-suk begs for Kyung-yi's help after a video of the yacht party is leaked. Yi-kyung taps a member of Kyung-yi's team for a covert collaboration.

    Director:Unknown
    Writer:Unknown

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  11. Inspector Koo Season 1 Episode 10 - Episode 10
    8.9/10(44 votes)

    #11 - Episode 10

    S1:E10

    Kyung-yi inches closer to finding out the truth behind the boat party. Yi-kyung tries to escape the suffocating grasp of Yong-suk's control.

    Director:Unknown
    Writer:Unknown

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  12. Inspector Koo Season 1 Episode 12 - Episode 12
    8.9/10(49 votes)

    #12 - Episode 12

    S1:E12

    Santa is held hostage by Yi-kyung, who reveals his identity to a disbelieving Kyung-yi. Yong-suk's plans blow up in her face.

    Director:Unknown
    Writer:Unknown

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Worst Episodes Summary

"Episode 1" is the worst rated episode of "Inspector Koo". It scored 8/10 based on 65 votes. Directed by Unknown and written by Unknown, it aired on 10/30/2021. This episode scored 0.4 points lower than the second lowest rated, "Episode 2".