Perfect Number
“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.
Where to watch Perfect Number in United States
The Roku Channel
Tubi TVClick a service to open Perfect Number there. Availability last verified on June 21, 2026.
Where is Perfect Number streaming around the world?
| Country | Streaming on | Rent / Buy |
|---|---|---|
| United States | The Roku Channel, Tubi TV | — |
| Canada | Tubi TV | — |
| Japan | Amazon Prime Video, Amazon Prime Video with Ads | Amazon Video |
| South Korea | Netflix, Watcha, Netflix Standard with Ads, TVING | wavve |
About Perfect Number
Perfect Number is a 2012 Korean-language thriller and mystery film directed by Pang Eun-jin. The cast is led by Ryoo Seung-bum, Lee Yo-won, Cho Jin-woong. It has a runtime of 2h 0m. Viewers rate it 6.6/10 across 100 ratings. In United States, it is currently streaming on The Roku Channel, Tubi TV.
Perfect Number was produced by K&Entertainment, CJ Entertainment, and Studio K and made in South Korea. It was released on October 18, 2012. At the box office it grossed around $10 million worldwide.
- Director
- Pang Eun-jin
- Writers
- Kim Tae-yun, Lee Gong-ju, Lee Jung-hwa
- Release date
- October 18, 2012
- Original language
- Korean
- Status
- Released
- Country
- South Korea
- Box office
- $10 million
- Production
- K&Entertainment, CJ Entertainment, Studio K
Perfect Number cast & crew
Perfect Number was directed by Pang Eun-jin and written by Kim Tae-yun, Lee Gong-ju, and Lee Jung-hwa.
The cast features Ryoo Seung-bum as Suk-go, Lee Yo-won as Hwa-sun, Cho Jin-woong as Detective Min-bum, Kim Yoon-sung as Sang-joon, Kim Bo-ra as Yoon-ah, and Lee Seok-jun as Nam Tae-woo.
Behind the camera, the score was composed by Shin I-kyung, cinematography is by Choi Chan-min, and it was produced by Seo Young-hee and Choi Yun-jin.
Is Perfect Number worth watching?
Perfect Number holds an audience score of 6.6/10 from 74 ratings, a solidly received thriller films.
At 2h 0m, it's a standard feature-length watch.
If you enjoy thriller and mystery, Perfect Number is worth a place on your watchlist.
How and where to watch Perfect Number
In United States, you can stream Perfect Number on The Roku Channel and Tubi TV. Click any service above to open it directly.
Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.
Rate & review
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Cast of Perfect Number
Ryoo Seung-bum
Suk-go
Lee Yo-won
Hwa-sun
Cho Jin-woong
Detective Min-bum
Kim Yoon-sung
Sang-joon
Kim Bo-ra
Yoon-ah
Lee Seok-jun
Nam Tae-woo
Lim Sung-min
Jung-sook
Kwak Min-ho
Chul-min
Kwon Hae-hyo
Team Leader
Nam Moon-chul
Director
Kim Ah-ron
Girl
Kim Joo-ryoung
Madame
Perfect Number — FAQs
▸Where can I watch Perfect Number in United States?
Perfect Number is streaming on The Roku Channel, Tubi TV in United States.
▸Is Perfect Number on The Roku Channel?
Yes — Perfect Number is currently available on The Roku Channel in United States.
▸What language is Perfect Number in?
Perfect Number is originally in Korean. Subtitle and dub options vary by streaming service.
▸How long is Perfect Number?
Perfect Number runs 2 hours 0 minutes (120 minutes).
▸What is Perfect Number rated?
It holds a 6.6/10 audience score from 74 ratings.
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