Title: In the Line of Duty 4 (皇家師姐IV直擊證人)
Release Date: 1989-07-21
IMDB ID: tt0097539
Vote Average: 6.9 (58 votes)
Overview: Two detectives who are up to their necks in trouble and in each other's face, as they try to shut down a drug-trafficking scheme that could be connected with international ties to organized crime. But in the midst of their investigation, innocent immigrant dock worker Luk Wan-Ting gets caught up in the mix when he witnesses the murder of an intelligence operative and is framed for the crime.
Cast: Cynthia Khan (Insp Rachel Yeung Lai-Ching), Donnie Yen (Captain Donnie Yan), Michael Wong (Captain Michael Wong), Yuen Yat-Choh (Luk Wan-Ting), Lisa Chiao Chiao (Luk's Mother), Wai Gei-Shun (HK Police Officer),
Crew: Yuen Woo-Ping (Director), Anthony Wong Wing-Fai (Writer), Cheung Chi-Sing (Writer), Kim Yip Kwong-Kim (Writer), Stephen Shin Kei-Yin (Writer), Yuen Shun-Yi (Martial Arts Choreographer),