

TV series
Important Witness Private Detective
2017, Japanese, on tv asahi. Created by Kinuta Murako.
Kei Maneki works as a model. He has bad luck with murder cases taking place when he works. Kei Maneki becomes an important witness in these murder cases. To clear his name, Kei Maneki and his model friends Itsuki Suo and Toma Shimon attempt to solve the murder cases.
- Seasons
- 1
- Episodes
- 8
- Episode length
- 45 min
- Status
- Ended in 2017
Too new to call
Not enough people have rated it yet for a verdict.
Seen it? Give your verdict.
Saved privately on this device.
Where to watch Important Witness Private Detective
Important Witness Private Detective isn’t listed on any OTT platform in India yet.
No streaming listings yet. Search JustWatch.
Latest episode
S1 E8: Episode 8
Aired 8 December 2017
Seasons 1
Cast & crew
- Kinuta MurakoCreator
- Yuta TamamoriKei Maneki · 8 ep
- Yuki FurukawaToma Shimon · 8 ep
- Keiichiro KoyamaItsuki Suo · 8 ep
- Yuko ArakiKarin Saotome · 8 ep
- Kenichi TakitohShinosuke Namie · 8 ep
- Akane HottaMakiko Makita · 8 ep
- Tokuma NishiokaAtsushi Kosen · 8 ep
- Kosuke ToyoharaIchigaku Nobori · 8 ep
- Ken MatsudairaSeiji Yoshikura · 8 ep
- Naoki IchiiKanta Imai · 8 ep
- Marin[Make-up artist] · 1 ep
Details
- First aired
- 20 October 2017
- Last aired
- 8 December 2017
- Network
- tv asahi
- Original title
- 重要参考人探偵
- Language
- Japanese
- Country
- Japan
- Type
- Miniseries
Check ratings elsewhere
News & fan talk
What Important Witness Private Detective is based on
Important Witness Private Detective is based on Key person of interest detective, a manga series by Murako Kinuta.
Manga series
Key person of interest detective
By Murako Kinuta
Source details from Wikidata and TMDB.
If you liked Important Witness Private Detective

Case Closed: The Culprit Hanzawa
TV · 2022 · 7.5/10
Worth the HypeRecommended by TMDB viewers

The Dinner Table Detective
TV · 2025 · 7.1/10
NewRecommended by TMDB viewers

The Sylvester & Tweety Mysteries
TV · 1995 · 6.5/10
Popcorn FlickRecommended by TMDB viewers

Case Closed: Zero's Tea Time
TV · 2022 · 6.7/10
NewRecommended by TMDB viewers

Ron Kamonohashi's Forbidden Deductions
TV · 2023 · 6.8/10
Popcorn FlickRecommended by TMDB viewers

Scooby-Doo and Guess Who?
TV · 2019 · 8.0/10
Absolute CinemaRecommended by TMDB viewers

Agatha Raisin
TV · 2016 · 6.2/10
Popcorn FlickRecommended by TMDB viewers

Scooby-Doo and Scrappy-Doo
TV · 1979 · 7.5/10
Worth the HypeRecommended by TMDB viewers

The InBESTigators
TV · 2019 · 7.9/10
NewRecommended by TMDB viewers

Mike Tyson Mysteries
TV · 2014 · 7.3/10
Worth the HypeRecommended by TMDB viewers
Important Witness Private Detective: quick answers
Is Important Witness Private Detective worth watching?
Important Witness Private Detective doesn’t have enough ratings for a verdict yet.
How many seasons of Important Witness Private Detective are there?
Important Witness Private Detective has 1 season and 8 episodes, about 45 minutes each.
Is Important Witness Private Detective finished?
Yes. Important Witness Private Detective ended in 2017, so you can watch the whole story.
Which OTT platform is Important Witness Private Detective on?
Important Witness Private Detective isn’t listed on any OTT platform in India yet. (Checked 12 November 2026.)
Important Witness Private Detective parents guide: is it suitable for kids?
No age rating is listed for Important Witness Private Detective yet.
What shows are like Important Witness Private Detective?
If you liked Important Witness Private Detective, try Case Closed: The Culprit Hanzawa, The Dinner Table Detective, The Sylvester & Tweety Mysteries.
Who created Important Witness Private Detective?
Important Witness Private Detective was created by Kinuta Murako and stars Yuta Tamamori, Yuki Furukawa, Keiichiro Koyama.
What is Important Witness Private Detective based on?
Important Witness Private Detective is based on Key person of interest detective, a manga series by Murako Kinuta.
