In the Line of Duty 4
皇家師姐IV直擊證人
Synopsis
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.
Part of the In the Line of Duty Collection
Stream the entire interconnected saga and experience every installment in chronological storyline order.
Trailers, Teasers & Extra Featurettes
Official promotional previews, behind-the-scenes footage, and exclusive clips.
Original Home Video TrailerOfficial
Type: Trailer • Published 2023-01-31
Top Cast
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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
Yuen Shun-Yi
Drug Dealer
Michael Woods
Black Fighter on Rooftop / Motorbike
John Salvitti
Fighter in Alley
Stephan Berwick
Fighter on Motorbike
Fairlie Ruth Kordick
Blonde Fighter
Paul Wong Kwan
Killer at Hospital
Eddie Maher
Loan Shark in Seattle
Liu Kai-Chi
Ming
Paco Yick Tin-Hung
Cho Wing
Jim James
Derek Kwok Jing-Hung
Release History & Theatrical Window
December 21, 1990
Physical Home Media
Key Information & Fast Facts
- Director
- Yuen Woo-ping
- Screenplay & Story
- Anthony Wong Wing-Fai, Cheung Chi-Sing, Kim Yip Kwong-Kim, Stephen Shin Kei-Yin
- Original Score
- Richard Yuen, Tang Siu-Lam
- Original Title
- 皇家師姐IV直擊證人
- Country of Origin
- Hong Kong
- Spoken Languages
- Cantonese
- Runtime
- 1h 34m
- Production Studios
- D & B Films
Creative Leadership & Key Crew
Yuen Woo-ping
Anthony Wong Wing-Fai, Cheung Chi-Sing, Kim Yip Kwong-Kim, Stephen Shin Kei-Yin
Richard Yuen, Tang Siu-Lam
Au Kam-Hung, Ma Koon-Wah
Dickson Poon Dik-Sang, Stephen Shin Kei-Yin
Department Leadership Roster
Yuen Woo-ping
Director
Anthony Wong Wing-Fai
Writer
Cheung Chi-Sing
Writer
Kim Yip Kwong-Kim
Writer
Stephen Shin Kei-Yin
Writer
Stephen Shin Kei-Yin
Producer
Richard Yuen
Original Music Composer
Tang Siu-Lam
Original Music Composer
Au Kam-Hung
Director of Photography
Ma Koon-Wah
Director of Photography
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
International Certification Matrix
FSK 18 — Restricted to adults 18 and older.
Suitable only for adults 18 years and over.
Production Stills & Gallery
Official cinematic photography and background stills for In the Line of Duty 4.
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Periodic import List
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1989
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Frequently Asked Questions About In the Line of Duty 4
Quick factual answers about cast, synopsis, director, box office, and release information.
What is In the Line of Duty 4 about?
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.
Who directed In the Line of Duty 4?
In the Line of Duty 4 was directed by Yuen Woo-ping.
Who stars in In the Line of Duty 4?
The principal cast of In the Line of Duty 4 includes Cynthia Khan, Donnie Yen, Michael Wong, Yuen Yat-Choh, Lisa Chiao Chiao.
When was In the Line of Duty 4 released and how long is it?
In the Line of Duty 4 was released in 1989 with a total runtime of 1h 34m.
Who composed the musical score for In the Line of Duty 4?
The original motion picture soundtrack for In the Line of Duty 4 was composed by Richard Yuen, Tang Siu-Lam.
What is the age rating and content advisory for In the Line of Duty 4?
In the Line of Duty 4 holds official age classifications: DE: 18 (FSK 18 — Restricted to adults 18 and older.); GB: 18 (Suitable only for adults 18 years and over.).