Perfect Number
2012, Korean. Directed by Pang Eun-jin.
To him the only unsolvable equation was love.
A brilliant math teacher formulates the perfect cover-up after his neighbor murders her abusive ex-husband.
- Runtime
- 2h 0m
- Post-credits
- None listed
- Language
- Korean
- Rated
- Check local
Start now and it ends at ….
Popcorn Flick
Fun if you don’t overthink it.
6.7/10 from 78 TMDB viewer ratings.
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Where to watch Perfect Number
Perfect Number isn’t on a subscription OTT platform in India, but you can watch it free online.
The Roku Channel
Tubi TVAvailability in India as of 9 November 2026. Streaming data by JustWatch.
Cast & crew
Details
- Released
- 18 October 2012
- Original title
- 용의자X
- Country
- South Korea
- Written by
- Kim Tae-yun, Lee Gong-ju, Lee Jung-hwa
- Box office
- $10M
Check ratings elsewhere
News & fan talk
What Perfect Number is based on
Perfect Number is based on The Devotion of Suspect X, a 2005 novel by Keigo Higashino, published by Bungeishunjū.
Novel · 2005
The Devotion of Suspect X
By Keigo Higashino
Published by Bungeishunjū
Source details from Wikidata and TMDB.
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Perfect Number: quick answers
Is Perfect Number worth watching?
Our verdict is Popcorn Flick: Fun if you don’t overthink it. It scores 6.7/10 from 78 TMDB viewer ratings.
How long is Perfect Number?
Perfect Number runs 120 minutes (2h 0m).
Does Perfect Number have a post-credits scene?
None is listed for Perfect Number. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
Perfect Number parents guide: is it suitable for kids?
No age rating is listed for Perfect Number yet.
Which OTT platform is Perfect Number on?
Perfect Number isn’t on a subscription OTT platform in India, but you can watch it free online. (Checked 9 November 2026.)
What movies are like Perfect Number?
If you liked Perfect Number, try The Neighbors, Helpless, Blind.
Who directed Perfect Number?
Perfect Number (2012) was directed by Pang Eun-jin and stars Ryoo Seung-bum, Lee Yo-won, Cho Jin-woong.
What is Perfect Number based on?
Perfect Number is based on The Devotion of Suspect X, a 2005 novel by Keigo Higashino, published by Bungeishunjū.