Movie
Perfect Number
용의자X
“To him the only unsolvable equation was love.”
2012EndedSouth Korea120 min
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What's it about?
A brilliant math teacher formulates the perfect cover-up after his neighbor murders her abusive ex-husband.
Where to stream?
Tubi TV
Checked 09/29/2026 · United States catalog · account required.
Available
The Roku Channel
Checked 09/29/2026 · United States catalog · account required.
Available
More offers than the United States catalog
These offers belong to each country's catalog and usually can't be watched from here.
Availability data partly provided by JustWatch via TMDB.
Trailers & videos
용의자X_메인예고편 — Trailer · Korean · official · YouTube
Cast
Ryoo Seung-bum
류승범
Suk-go
Lee Yo-won
이요원
Hwa-sun
Cho Jin-woong
조진웅
Detective Min-bum
Kim Yoon-sung
김윤성
Sang-joon
Kim Bo-ra
김보라
Yoon-ah
Lee Seok-jun
이석준
Nam Tae-woo
Lim Sung-min
임성민
Jung-sook
Kwak Min-ho
곽민호
Chul-min
Kwon Hae-hyo
권해효
Team Leader
Nam Moon-chul
남문철
Director
K
Kim Ah-ron
Girl
Kim Joo-ryoung
김주령
Madame
Park Hyoung-soo
박형수
Investigator 1
Nam Yeon-woo
남연우
Investigator 2
Lee Kyoo-hyung
이규형
Suk-go (Teen)
Dong Bang-woo
동방우
Innkeeper
Song Young-chang
송영창
Lie detector investigator
Choi Young-woo
최영우
Forensic team member #1
18 people — scroll sideways
Crew
Producer
Choi Yun-jin, Lee Seok-won, Shin Yang-joong, Seo Young-hee
Music
Lee Seung-yeop, Shin I-kyung
Writer
Lee Jung-hwa, Kim Tae-yun, Lee Gong-ju, Keigo Higashino
Director
Pang Eun-jin
Image gallery
Posters (3)
Stills (1)
Images © their respective rights holders · Source: TMDB