Infernal Affairs (2002) runs 1 h 41 min, is rated R in the US and averages 7.8 from 1,967 TMDB members. Chan Wing Yan, a young police officer, has been sent undercover as a mole in the local mafia. Lau Kin Ming, a young mafia member, infiltrates the police force. Years later, their older counterparts, Chen Wing Yan and Inspector Lau Kin Ming, respectively, race against time to expose the mole within their midst.
Availability loads live for your country. See where Infernal Affairs streams (JustWatch via TMDB) →
Streaming availability by JustWatch. In the US, as of 2026-11-04: HBO Max Amazon Channel (subscription), Criterion Channel (subscription), HBO Max (subscription), Shout! Factory TV (free with ads).
Infernal Affairs on TMDB · This product uses the TMDB API but is not endorsed or certified by TMDB.

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 2026-11-04. This 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