In the Line of Duty 4
皇家師姐IV直擊證人
We checked 8 streaming services in India on 05 Jun 2026 at 23:57 IST
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
Cynthia Khan
as Insp Rachel Yeung Lai-Ching
Donnie Yen
as Captain Donnie Yan
Michael Wong
as Captain Michael Wong
Yuen Yat-Choh
as Luk Wan-Ting
Lisa Chiao Chiao
as Luk's Mother
Wai Gei-Shun
as HK Police Officer
Yuen Shun-Yi
as Drug Dealer
Michael Woods
as Black Fighter on Rooftop / Motorbike
John Salvitti
as Fighter in Alley
Stephan Berwick
as Fighter on Motorbike
Fairlie Ruth Kordick
as Blonde Fighter
Paul Wong Kwan
as Killer at Hospital
Eddie Maher
as Loan Shark in Seattle
Liu Kai-Chi
as Ming
Paco Yick Tin-Hung
as
Cho Wing
as
Jim James
as
Derek Kwok Jing-Hung
as
Where does In the Line of Duty 4 rank today?
In the Line of Duty 4 is #5407 on the CineFlixo Daily Streaming Charts today.
- Highest: #5407
- Top 10: 0 days
- Top 100: 0 days
Watch In the Line of Duty 4 Online Free in HD
Stream In the Line of Duty 4 online free in HD on CineFlixo. A popular action and crime movie originally produced in CN and released in 1989, it's earned a solid 7.0/10 from 61 viewers worldwide.
About In the Line of Duty 4
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. Running 94 minutes.
In the Line of Duty 4 Cast and Characters
The cast features Cynthia Khan (as Insp Rachel Yeung Lai-Ching), Donnie Yen (as Captain Donnie Yan), Michael Wong (as Captain Michael Wong), Yuen Yat-Choh (as Luk Wan-Ting), and Lisa Chiao Chiao (as Luk's Mother). Their performances are a major reason In the Line of Duty 4 has built such a passionate audience.
Where to Watch In the Line of Duty 4 Online
On CineFlixo you can watch In the Line of Duty 4 free — no account, no credit card, no ads in the middle of the show. We stream the full film in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch In the Line of Duty 4 NowWhy People Are Watching In the Line of Duty 4
In the Line of Duty 4 flies under the radar but it deserves your attention. What makes it work is action sequences that don't feel cheap and tight pacing that earns its twists. If you enjoy CN storytelling that doesn't follow the same tired beats, this is the kind of film you'll end up recommending to friends.
Frequently Asked Questions about In the Line of Duty 4
Where can I watch In the Line of Duty 4 online for free?
You can watch In the Line of Duty 4 online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How long is In the Line of Duty 4?
In the Line of Duty 4 runs for 94 minutes (about 1.6 hours).
Is In the Line of Duty 4 good? What's the rating?
In the Line of Duty 4 holds a 7.0/10 rating based on 61 reviews — a solid pick if the genre interests you.
Who is in the cast of In the Line of Duty 4?
The main cast includes Cynthia Khan, Donnie Yen, Michael Wong, and Yuen Yat-Choh, plus a strong supporting ensemble.
Is In the Line of Duty 4 available in CN?
Yes — In the Line of Duty 4 was originally produced in CN and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was In the Line of Duty 4 released?
In the Line of Duty 4 was released in 1989.
Do I need an account to watch In the Line of Duty 4 on CineFlixo?
No. CineFlixo is free and you can watch In the Line of Duty 4 without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Movies You Might Like
If you enjoyed In the Line of Duty 4, check out Seven Swords, The Dead Pool, The One, Kung Fu Cult Master, and Naked Weapon.
💬 Comments0
Join the conversation
Share your thoughts, rate episodes, and connect with other fans
Hey everyone! 👋 Welcome to the discussion.
Feel free to share your thoughts about this series — what did you love, what surprised you, which episodes are your favorites? 🎬
Got ideas for what we should add to CineFlixo? Want to suggest a series? Drop it here! We read every comment ✨
Similar Movies
Movies like this one
Recommended for You
Based on this movie
Similar Movies
More action movies you might enjoy
Kung Fu Hustle
2004
Shaolin Soccer
2001
Infernal Affairs
2002
Police Story
1985
Armour of God
1986
Mr. Vampire
1985
Once a Thief
1991
Infernal Affairs II
2003
The Legend of Drunken Master
1994
A Chinese Odyssey Part Two: Cinderella
1995
The Prosecutor
2024
Police Story 3: Super Cop
1992
Explore more
Frequently Asked Questions
Common questions about In the Line of Duty 4
Where can I watch In the Line of Duty 4 for free?
You can watch In the Line of Duty 4 (1989) online for free on CineFlixo. Just click "Watch Free" on this page to start streaming instantly — no account, subscription, or downloads required.
What is In the Line of Duty 4 about?
In the Line of Duty 4 is a Action/Crime film. 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.
When was In the Line of Duty 4 released?
In the Line of Duty 4 was released on July 21, 1989. It has a runtime of 1h 34m. The film was produced by D & B Films.
Who stars in In the Line of Duty 4?
In the Line of Duty 4 stars Cynthia Khan, Donnie Yen, Michael Wong and Yuen Yat-Choh. The full cast list is available in the Cast section above.
Is In the Line of Duty 4 available in HD?
Yes, In the Line of Duty 4 is available to stream in high definition (HD) on CineFlixo. Our players automatically deliver the best quality your connection supports — no extra setup needed.