- HD 1080
- Runtime: 120m.
- Status: Released
0
- Languages: ko
- Country: South Korea
- Director: Pang Eun-jin
- Stars: Ryoo Seung-bum, Lee Yo-won, Kim Yoon-sung, Kim Bo-ra, Kim Ah-ron
- keywords: woman director
- Production_studio: K&Entertainment, CJ Entertainment, Studio K, Twin Co. Ltd.
- Slogan: To him the only unsolvable equation was love.
- The Perfect Number is featured in the top rankings of 2012
- #36 in Top Thriller Movies of 2012
- #13 in Top Mystery Movies of 2012
A brilliant math teacher formulates the perfect cover-up after his neighbor murders her abusive ex-husband.