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The Perfect Insider 

Subete ga F ni naru (original title)
A researcher and the daughter of his mentor discover a corpse while on vacation and work together to solve the mysteries of what will become a serial murder case.






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Series cast summary:
Yasuyuki Kase Yasuyuki Kase ...  Sôhei Saikawa 11 episodes, 2015
Atsumi Tanezaki Atsumi Tanezaki ...  Moe Nishinosono 11 episodes, 2015
Ibuki Kido Ibuki Kido ...  Shiki Magata 11 episodes, 2015
Tatsuhisa Suzuki ...  Yukihiro Yamane 9 episodes, 2015
Shunsuke Sakuya Shunsuke Sakuya ...  Seiji Shindô 9 episodes, 2015
Yôko Hikasa Yôko Hikasa ...  Ayako Shimada 7 episodes, 2015
Hiroshi Shimozaki Hiroshi Shimozaki ...  Toshiki Mochizuki 6 episodes, 2015
Sayaka Kobayashi Sayaka Kobayashi ...  Yumiko Shindô 5 episodes, 2015
Kentarô Itô Kentarô Itô ...  Chikara Mizutani 5 episodes, 2015
Atsushi Imaruoka Atsushi Imaruoka ...  Satoshi Hasebe 5 episodes, 2015
Megumi Toda Megumi Toda ...  Deborah 5 episodes, 2015


A researcher and the daughter of his mentor discover a corpse while on vacation and work together to solve the mysteries of what will become a serial murder case.

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tv mini series | See All (1) »


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Official Sites:

Official Site [Japan]





Release Date:

8 October 2015 (Japan) See more »

Also Known As:

Everything Becomes F: The Perfect Insider See more »

Company Credits

Production Co:

A-1 Pictures See more »
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Did You Know?


Version of The Perfect Insider (2014) See more »

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User Reviews

Creepy. Intelligent. Beautiful.
16 October 2017 | by danteshamestSee all my reviews

TLDR: Slow first episode, but enjoyed the rest.

At first I wasn't impressed. I watched the first episode and the apparent slow pace made me lose interest.

But several months later I continued with the 2nd episode, which is when the murder actually happens. By the end of the the 2nd episode I was hooked and watched the rest of the episodes in a day.

This is now one my top 10 favourite manga/anime ever, along with Higurashi, Death Note and Liar Game.

I won't talk about the plot other than that it's primarily a locked room murder mystery. I recommend going into this series blind. By the end of the 2nd episode you should be able to decide for yourself whether to keep watching or not. Personally I loved all the red herrings and twists. There's enough clues for you to guess the truth before the big reveal.

I will however talk about the art. The only way I can describe it is "smoooooth". The animations are fluid and there are so many backgrounds and angles used. Unlike most of the popular shounen anime these days, every scene looks brand new and I don't see many assets reused. The character's movements flow from scene to scene, and their actions all carry a unique flair. For example, in one scene the male protagonist is waving his cigarette in the air in a dimly lit room, and the way the light trails his movements is beautiful.

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