Inspector Koo backdrop
Action & Adventure•Comedy•Drama

The Best Episodes of Inspector Koo

Every episode of Inspector Koo ranked from best to worst. Let's dive into the Best 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.

Airs on
JTBC
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons1

All1

Episode Rankings

  1. #1 Fan Favorite
    Click to reveal
    Inspector Koo Season 1 Episode 10 - Episode 10
    8.9/10(44 votes)

    #1 - 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

    Be the first to start the conversation for this episode

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

    #2 - 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

    Be the first to start the conversation for this episode

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

    #3 - 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

    Be the first to start the conversation for this episode

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

    #4 - 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

    Be the first to start the conversation for this episode

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

    #5 - 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

    Be the first to start the conversation for this episode

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

    #6 - 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

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 WORST Episodes of Inspector Koo

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

    #7 - 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

    Be the first to start the conversation for this episode

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

    #8 - 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

    Be the first to start the conversation for this episode

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

    #9 - 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

    Be the first to start the conversation for this episode

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

    #10 - 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

    Be the first to start the conversation for this episode

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

    #11 - 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

    Be the first to start the conversation for this episode

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

    #12 - 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

    Be the first to start the conversation for this episode

Best Episodes Summary

"Episode 10" is the best rated episode of "Inspector Koo". It scored 8.9/10 based on 44 votes. Directed by Unknown and written by Unknown, it aired on 12/5/2021. This episode scored 0.0 points higher than the second highest rated, "Episode 12".