Perfect Number

Riverside apartment. Winter light on a discarded bicycle. The math genius quietly loved next door now requires an ironclad alibi. Every variable must be accounted for. From South Korea, a locked-room puzzle for fans of cerebral noirs.

Streaming availability changes weekly. Check the Where to watch panel above — we re-pull TMDB's JustWatch index every week. If nothing's listed, the film is between licence windows.

Our similarity graph picks 6 films based on shared director, keywords, mood-cluster overlap, and MovieLens user co-rating — niche-biased away from blockbusters. Full list: /like/perfect-number-2012/.

Pang Eun-jin directed Perfect Number in 2012. See Pang Eun-jin's full filmography, where to start with Pang Eun-jin, or where to go after you've seen everything by Pang Eun-jin.

Perfect Number was released in 2012 (KO original-language production), with a runtime of 120 minutes.