Yan is a young police graduate sent deep undercover to infiltrate the Triads. Ming is one of Hong Kong's most decorated cops but is secretly working for the Triads. Neither "mole" knows the identity of the other, thus beginning a tense collision course where the lines between right and wrong become very blurred. Each one must choose between their jobs, their honour and eventually, their lives.
Special Features:
- Making of INFERNAL AFFAIRS
- Alternative ending
- Confidential file
- Music video
- Original trailers