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.

  1. Yuen Woo-ping


  2. Anthony Wong Wing-Fai


  3. Kim Yip


  4. Stephen Shin


  5. Cheung Chi-Sing


Top Billed Cast

  1. Cynthia Khan

    Cynthia Khan

    Insp Rachel Yeung Lai-Ching

  2. Donnie Yen

    Donnie Yen

    Captain Donnie Yan

  3. Michael Wong

    Michael Wong

    Captain Michael Wong

  4. Yuen Yat-Choh

    Yuen Yat-Choh

    Luk Wan-Ting

  5. Lisa Chiao Chiao

    Lisa Chiao Chiao

    Luk's mother

Full Cast & Crew

In the Line of Duty 4
In the Line of Duty 4



Original Title 皇家師姐IV直擊證人

Status Released

Release Information

  • July 21, 1989


Original Language Cantonese

Runtime 1h 34m

Budget -

Revenue -



Content Score


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