Infernal Affairs (無間道) is a stylish 2002Hong Kong crime thriller about an cop (Tony Leung, as Yan, 陳永仁) going deep undercover into the Triads and a Triad member going into the police department (Andy Lau, as Ming, 劉健明).
Each mole was planted by the rival organization to gain an advantage in intelligence over the other side. The crime group portrayed in the movie is the Triads of Hong Kong.
Infernal Affairs was known for its star-studded cast of Tony Leung, Andy Lau, Anthony Wong (黄秋生), Eric Tsang (曾志伟), Kelly Chen, and Sammi Cheng.
This film also sold exceptionally well in Hong Kong and was considered "a box office miracle". As well, it was considered a revival of HK cinema because it was released during a time where their film industry was generally lacking of creativity. Due to this commercial and critical success, the original Infernal Affairs was followed by a prequelInfernal Affairs II and a sequelInfernal Affairs III in 2003.
While InfernalAffairs is considered a crime caper, you won’t see Andy and Tony in an all out shoot out nor will you experience any fiery explosions.
InfernalAffairs is truly an inferno of mixed emotions going through the revolving door of life.
InfernalAffairs is bits and pieces of a grand puzzle awaiting you, the audience, to watch and see the final puzzle piece placed in the thought provoking ending.