Detective Investigation Files IV
刑事偵緝檔案Ⅳ
We checked 8 streaming services in India on 04 Jun 2026 at 17:02 IST
About
Detective Investigation Files IV (Chinese: 刑事偵緝檔案IV) is the 4th and final installment of the Detective Investigation Files TV franchised by TVB in Hong Kong. It is a complete reboot of the series, with new cast. The series focuses on the lives of two detectives, Tsui Fei (Louis Koo) and Kong Chi Shan (Sunny Chan), and the murder cases they deal with.
Cast
Seasons
Where does Detective Investigation Files IV rank today?
Detective Investigation Files IV is #3570 on the CineFlixo Daily Streaming Charts today.
- Highest: #3570
- Top 10: 0 days
- Top 100: 0 days
Watch Detective Investigation Files IV Online Free — All Episodes in HD
Stream Detective Investigation Files IV online free in HD on CineFlixo. A highly acclaimed drama, crime, and mystery series originally produced in CN, it's earned a solid 8.0/10 from 1 viewers worldwide.
About Detective Investigation Files IV
Detective Investigation Files IV (Chinese: 刑事偵緝檔案IV) is the 4th and final installment of the Detective Investigation Files TV franchised by TVB in Hong Kong. It is a complete reboot of the series, with new cast. The series focuses on the lives of two detectives, Tsui Fei (Louis Koo) and Kong Chi Shan (Sunny Chan), and the murder cases they deal with. Across 1 season and 50 episodes.
Detective Investigation Files IV Cast and Characters
The cast features Louis Koo (as 徐飞), Jessica Hsuan (as 武俏君), Sunny Chan Kam-Hung (as 江子山), Charmaine Sheh Sze-Man (as 文婉兰), and Lee San-San (as 唐心如 Tong Sum Yu). Their performances are a major reason Detective Investigation Files IV has built such a passionate audience.
Where to Watch Detective Investigation Files IV Online
On CineFlixo you can watch Detective Investigation Files IV free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch Detective Investigation Files IV NowWhy People Are Watching Detective Investigation Files IV
There's a reason Detective Investigation Files IV keeps showing up on "must-watch" lists. What makes it work is emotional weight that hits where it counts 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 show you'll end up recommending to friends.
Frequently Asked Questions about Detective Investigation Files IV
Where can I watch Detective Investigation Files IV online for free?
You can watch Detective Investigation Files IV online free on CineFlixo. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Detective Investigation Files IV have?
Detective Investigation Files IV has 50 episodes across 1 season. All episodes are available to stream right here on CineFlixo.
Is Detective Investigation Files IV good? What's the rating?
Detective Investigation Files IV holds a 8.0/10 rating based on 1 reviews — genuinely excellent.
Who is in the cast of Detective Investigation Files IV?
The main cast includes Louis Koo, Jessica Hsuan, Sunny Chan Kam-Hung, and Charmaine Sheh Sze-Man, plus a strong supporting ensemble.
Is Detective Investigation Files IV available in CN?
Yes — Detective Investigation Files IV was originally produced in CN and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
Do I need an account to watch Detective Investigation Files IV on CineFlixo?
No. CineFlixo is free and you can watch Detective Investigation Files IV without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Frequently Asked Questions
Where can I watch Detective Investigation Files IV for free?
You can watch Detective Investigation Files IV online for free on CineFlixo. All 50 episodes across 1 season are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Detective Investigation Files IV have?
Detective Investigation Files IV currently has 1 season and a total of 50 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on CineFlixo and continue watching from where you left off.
What is Detective Investigation Files IV about?
Detective Investigation Files IV (Chinese: 刑事偵緝檔案IV) is the 4th and final installment of the Detective Investigation Files TV franchised by TVB in Hong Kong. It is a complete reboot of the series, with new cast. The series focuses on the lives of two detectives, Tsui Fei (Louis Koo) and Kong Chi Shan (Sunny Chan),… It belongs to the Drama, Crime, Mystery genres.
In which language is Detective Investigation Files IV originally available?
Detective Investigation Files IV was originally produced in CN. On CineFlixo the show is available in its original CN audio. Check the player options on the watch page for available subtitle tracks.
When was Detective Investigation Files IV first released?
Detective Investigation Files IV is currently available to stream on CineFlixo. Visit the show page for the latest episode and air-date information.
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