The Emissary (1982)
Original title: 獵鷹
The Emissary is a 1982 Chinese-language crime series. It stars Andy Lau, Paul Chun Pui and Lau Kong.
Kong Tai-wai is an idealistic college student who decides to join the police force, and later becomes an undercover detective disguising himself as a chief assistant of a major drug trafficker.