Movie guide
In the Line of Duty 4 (1989): movie guide
In the Line of Duty 4 (1989) is a Action, Crime, Thriller running about 94 minutes. It holds a TMDB score of 7.0/10 from 65 votes. Notable cast includes Cynthia Khan, Donnie Yen, Michael Wong, Yuen Yat-Choh. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 1989-07-21
- Runtime: 94 min
- TMDB: 7.0/10
- Genres: Action, Crime, Thriller
Last updated: 2026-11-11 · First listed: 1989-07-21
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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.
Cast highlights
In the Line of Duty 4 features Cynthia Khan, Donnie Yen, Michael Wong, Yuen Yat-Choh, Lisa Chiao Chiao, Wai Gei-Shun. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 1989-07-21. Runtime: 94 minutes. TMDB score: 7.0/10 (65 votes). Genres: Action, Crime, Thriller. Original language: cn. Status: Released.
Discover In the Line of Duty 4 on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse In the Line of Duty 4, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is In the Line of Duty 4?
- In the Line of Duty 4 is listed as Action, Crime, Thriller on TMDB.
- How long is In the Line of Duty 4?
- In the Line of Duty 4 runs about 94 minutes.
- Who stars in In the Line of Duty 4?
- Cast highlights include Cynthia Khan, Donnie Yen, Michael Wong, Yuen Yat-Choh, Lisa Chiao Chiao, Wai Gei-Shun.
- Does Cinema Box stream In the Line of Duty 4?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
- Where can I track In the Line of Duty 4?
