《 Wújiàndào 》 jiǎng de shì jǐngchá hé hēibāng hùxiāng pài wòdǐ de gùshi.
"Infernal Affairs" tells the story of the police and a gang each planting a mole in the other.
Tips
culture
梁朝伟 plays a policeman who has spent ten years undercover in a triad, and 刘德华 a triad member planted in the police; each is ordered to unmask the other. Martin Scorsese remade it as The Departed (2006), which won the Oscar for Best Picture.
usage
The title comes from Buddhism: 无间地狱, the Avici hell, is the deepest hell, where suffering never pauses. 间 is read jiàn here, "gap", not jiān.