皇家師姐IV直擊證人

The name of this movie is 皇家師姐IV直擊證人 released in 1989-07-21 and it's main theme is 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..