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Infernal Affairs 2 (2003)
"Mou gaan dou II" (original title)

Not Rated  |   |  Action, Crime, Drama  |  1 October 2003 (Hong Kong)
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Ratings: 7.4/10 from 12,451 users  
Reviews: 44 user | 56 critic

In this prequel to Mou gaan dou (2002), Chan Wing Yan has just become an undercover cop in the triads while Lau Kin Ming joins the police force. Both the triads and the police find an enemy in a rival crime boss.


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Title: Infernal Affairs 2 (2003)

Infernal Affairs 2 (2003) on IMDb 7.4/10

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Cast overview, first billed only:
SP Wong Chi Shing (as Anthony Wong)
Francis Ng ...
SP Luk (as Hu Jun)
Tung Cho 'Joe' Cheung ...
Kwun (as Joe Cheung)
Henry Fong ...
Gandhi (as Fong Ping)
Peter Ngor ...
Arthur Wong ...
Teddy Chan ...
Chung-yue Chiu ...
Mary (as Yu Chiu)
Phorjeat Keanpetch ...
Say Ping Yap ...
Socialites (as Ye Shi Pin)


In the prequel of Infernal Affairs. Chan Wing Yan has been expelled from police academy in cause of his relatives to the triad. Now SP Wong give him a chance to undercover the triad family controlled by his half brother Hau. Besides of Ming. He has been ordered to killed Hau father and infiltrated the police department. The story get complicated when Wong's related to Hau father's dead. The avenge is begin when Mary. Sam's wife is the hit order. Now everything is complicated and related Written by PDD

Plot Summary | Plot Synopsis


It was the best of times. It was the worst of times. We all climb towards heaven. We all fall towards hell. See more »


Not Rated | See all certifications »


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Release Date:

1 October 2003 (Hong Kong)  »

Also Known As:

Infernal Affairs II  »

Company Credits

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Technical Specs


| (TV)

Sound Mix:


Aspect Ratio:

2.35 : 1
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Did You Know?


In the scene where Ngai Wing-Hau's lawyer leaves the family claiming, "I'm not one of you" a copy of "Noble House", James Clavell's blockbuster novel about Hong Kong, can be seen on the bookshelf behind him. See more »


When Mary Hon is at the airport, having got out of the taxi and ignored the phone call, she is standing in front of a large blue sign. The sign indicates the direction to "Departure" and "Immigation". The second word should read "Immigration", with an "r". See more »


Hon Sam: Play it by ear. Run if you have to.
See more »


References Goodfellas (1990) See more »


Composed by Kwong Wing Chan
Performed by Tan Han Jin
OP: Click Music Ltd.
See more »

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User Reviews

Everything you didn't need to know that badly
6 June 2006 | by (Riverside, California) – See all my reviews

What a tangled web a studio can weave when they realize they desperately need to make some money off of a sequel to a film that didn't need one. That's not to say that this is bad, but it would strike me as an ordinary film even if I hadn't seen the extraordinary film that came before. This "sequel," despite the number, is actually a prequel, but it doesn't so much fill in the blanks as muddy up the waters; it's often confusing, it's not always clear if some of the new backstory really squares with the depictions we saw in the first one, and some of the more glaring questions are left unanswered (possibly for film number three). The young replacements the mole characters, previously played by Tony Leung and Andy Lau, are certainly not up to the task. Thankfully, the movie works because Anthony Wong and Eric Tsang reprise their roles as the respective cop and mob boss, and it is quite interesting to learn about a relationship between them that, from what I recall, was far from obvious before. I certainly wouldn't recommend watching this before the first one, despite the chronology, but I imagine it is worth satisfying the likely thirst for more that you will most likely have after watching the previous film.

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