Between 1963 and 1973, during the British rule of Hong Kong, there was a dark period. At that time, police corruption was an open secret. In just those ten years between 1963 and 1973, the amount of money involved in police corruption in Hong Kong reached HK$10 billion at the time, which is approximately equivalent to HK$500 billion in 2009!
As the "emperor" of the entire corrupt empire — Brother Le, the head Chinese detective superintendent of Hong Kong (played by Tony Leung Ka-fai), he kept many "venomous snakes and ferocious beasts" under his control. Not only did he have people like Pineapple Pudding (played by Wong Jing), who was specifically responsible for liaising between the criminal underworld and the authorities, but also fire-tempered Detective Fire Kylin (played by Anthony Wong), who was addicted to gambling and could find scapegoats for various wrongful cases when needed. However, Detective Sam Chan (played by Eason Chan) was the only kind-hearted person among Le's subordinates who still had a conscience. He was appreciated by Le for his excellent football skills.