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Where to watch Perfect Number (2012) tonight

Perfect Number (2012) runs 2 h and averages 6.7 from 78 TMDB members. A brilliant math teacher formulates the perfect cover-up after his neighbor murders her abusive ex-husband.

Runtime
2 h — ends 10:00 pm if you start at 8:00 pm
Rated
no US certification listed
Genres
Thriller, Mystery
Released
October 18, 2012
TMDB rating
6.7 / 10 from 78 votes
Director
Pang Eun-jin
Starring
Ryoo Seung-bum, Lee Yo-won, Cho Jin-woong, Kim Yoon-sung
Language
Korean
Original title
용의자X
Good for a group? Good for a small group that will pay attention.Thriller and Mystery keep a room quiet in the good way: phones down, guesses out loud.

Where to watch it tonight

Availability loads live for your country. See where Perfect Number streams (JustWatch via TMDB) →

Streaming availability by JustWatch. In the US, as of 2026-11-05: The Roku Channel (free with ads), Tubi TV (free with ads).

Is it on your services tonight?Tell Lights Down which streaming services you have and how long you've got; it ranks what you can stream tonight. Free, no login.

Questions people ask

How long is Perfect Number?
Perfect Number is 2 h long (120 minutes). If you start it at 8:00 pm it ends at 10:00 pm; add about 20 minutes if you watch trailers first.
What is Perfect Number rated?
TMDB lists no US age certification for Perfect Number.
Is Perfect Number a good movie to watch with a group?
Good for a small group that will pay attention. Thriller and Mystery keep a room quiet in the good way: phones down, guesses out loud.
Where can I stream Perfect Number?
In the US, as of 2026-11-05: The Roku Channel (free with ads), Tubi TV (free with ads). Availability changes often; this page loads the live list for your country (streaming availability by JustWatch).

Lists it could be on

If you like Perfect Number

Perfect Number on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.

Perfect Number poster

Lights Down is a free tool: tell it your streaming services and how long you have, and it ranks what you can stream tonight, with a this-or-that, a roll, a bracket and a wheel. Movie data from TMDB; streaming availability by JustWatch. Page updated 2026-10-31. TMDBThis product uses the TMDB API but is not endorsed or certified by TMDB. Lights Down is a Somebody Decide program. How the data works · Legal & privacy · Tonight's lists