Detective Investigation Files
刑事偵緝檔案
We checked 8 streaming services in India on 04 Jun 2026 at 14:40 IST
About
"Detective Investigation Files" revolves around the professional and meticulous investigations carried out by a group of dedicated police officers. As they delve into mysterious deaths with unclear causes, they tirelessly work towards maintaining peace and security for the people. However, their demanding job often comes at the expense of personal happiness. Cheung Dai Yong, a brilliant and astute police officer, has a track record of solving crucial cases. His trusted colleague, Lee Chung Yee, stands by his side, and together they tackle challenging and complex cases. Amidst their work, Dai Yong encounters Ko Jit, a tenacious journalist. Despite their initial conflicts, a deepening connection blossoms between them. However, Ko Jit already has a romantic partner.
Cast
Louis Koo
as 徐飞 Tsui Fei
Jessica Hsuan
as 武俏君 Mo Chiu Kwan (Queen)
Sunny Chan Kam-Hung
as 江子山 Kong Tze San
Charmaine Sheh Sze-Man
as 文婉兰 Man Yuen Lan (Man)
Lee San-San
as 唐心如 Tong Sum Yu
Maggie Shiu Mei-Kei
as 江子青/江子瑶 Kong Tze Ching / Kong Tze Yiu
Andy Tai Chi-Wai
as 邱彼得 Yau Bei Dak
Samuel Kwok Fung
as 梁剑雄 Leung Kim Hung
Edmond So Chi-Wai
as 韩国仁 Hon Kwok Yan (Korean)
Eileen Yeow
as 邵之蓝 Siu Chi Nam (Gigi)
Timothy Cheng Chi-Sing
as 刘建生 Lau Kin Sang
Anne Heung Hoi-Lam
as 梁芊芊 Leung Chin Chin
Catherine Chau
as 黃琪琪 Wong Kei Kei
Edward Mok
as 馮添海 Fung Tim Hoi
Henry Lo
as 曾彥行 Tsang Yin Hang
Cecilia So Yan-Chee
as 苏惠诗 So Wai Sze
Safina Lam
as
Seasons
Season 1
Cheung Dai Yong, a brilliant and astute police officer, has a track record of solving crucial cases. His trusted colleague, Lee Chung Yee, stands by his side, and together they tackle challenging and complex cases. Amidst their work, Dai Yong encounters Ko Jit, a tenacious journalist. Despite their initial conflicts, a deepening connection blossoms between them. However, Ko Jit already has a romantic partner.
Season 2
Detectives Cheung Tai Yung and Lee Chung Yee are back! This time, they are faced with even tougher cases: “Fatal Attraction”, “Destroying the Corpse”, “Death Warning, “ and “The Son’s Cross”. Meanwhile, Yung and Jessie are at a crossroads. Their love is tested as Carmen, a new member of Yung’s team, comes into the scene. Carmen is crazy about Yung. Then, Jessie finds out Carmen was once involved in a murder case.
Season 3
An even more thrilling succession to the second series, the "Detective Investigation Files III" continues to depict mysterious murder cases solved by Yung (Dai Tai Yu) and Yi (Leung Wing Chung), while at the same time, goes on telling the love story of the two detectives.
Season 4
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.
Episodes
Season 1
Episode 1
There is a terrible murder case in this strange society. The victim was chopped into pieces.The victim was chopped into pieces without the head and the abdomen. It is difficult to recognize its identity. Sergeant CHEUNG TAI YUNG and cop LEE CHUNG YEE are responsible for this difficult case. The coroner KONG YU HIM draws a conclusion according to the finger characteristics and believes that the victim is a thirty—years old nurse, LEE MAN FONG, wife of businessman CHOW CHUN KIT. The police starts a thorough investigation. They suspect three persons : Mr. CHOW, FONG’s lover Dr. CHOW and Mr. CHOW's mistress, DAISY. The motive for the murder is either sentimental factor, regarding money or for revenge. What is the truth?
Episode 2
The police proves that the victim is actually not LEE MAN FONG. HIN is neglectful of his job. The police finds out that KIT is in financial difficulty. He and his wife set up a plot to cheat the caution money. Unexpectedly, he indirectly puts his wife to death. YUNG finds out that the victim is actually, CHAN CHOI LING, also thirty-two years old. She was killed by KIT and his wife. Meanwhile, FONG’s dead body is found. There is KIT's finger—print on the murderous weapon. KIT then becomes one of the suspect. The police finds out that KIT is not the real murderer after thorough investigation. In fact, DAISY had followed KIT. She found that KIT's wife was still alive. She was very jealous as KIT had cheated her. She then killed KIT's wife.
Episode 3
Heaven's vengeance is slow but sure. The police report finds that DAISY's watch was stained with FONG’s blood. DAISY knows that she has failed to conceal the truth. She confesses that she is the murderer. The case is eventually cleared.YUNG's girlfriend KO GIT (reporter of the Fax Truth Magazine). She had once reported a case regarding drug dealing at TSE WAN SHAN. A drug addict, CHEUNG, threatens GIT a few times. YUNG warns CHEUNG not to bother GIT. GIT could then get rid of the trouble. GIT likes YUNG more after this incident.YEE and YE go to he Lobster Bay flying kite. One the way they hear a man shouting for help. They hurry to the spot and find that the man is pierced by an arrow. He is bleeding terribly. The man tells them that he was shot by the ‘Angel’ before he died.
Episode 4
The police finds out that the victim is SAM, a special reporter who is an expert in disclosing the famous people's privacy. He then extorts money from those people. The police believes that the motive for the murder is for revenge. The police sends YUNG and YEE to investigate the case. They find a bank pass book stating a recent deposit amount to hundred and fifty thousand dollars. They also find that the 'Angel' is actually a nightclub girl, ANGEL. YEE is ordered to look over her twenty-four hours a day. In order to get rid of the police, ANGEL disguises as a pregnant woman. She is crashed down by a car when she tries to escape away. She is seriously inured. She tells the police that she was extorted for hundred and fifty thousand dollars for concealing the fact that she had crashed her ex-boy friend to death. The police knows that she is not the murderer. They got some clue from SAM's watchman. They suspect YE.… ...
Episode 5
YEE discovers that YE had withdrawn hundred fifty thousand dollars. The date she withdrew the money was the same day SUM deposited the money. YEE also finds a photo with the image that YE is darting an arrow. The police suspects YE. They start a thorough investigation on YE.YE arranges to go to the Lobster Island with YEE. YUNG and CHIT follow them by car. YE arrives the destination earlier than YEE. She arranged everything in the female toilet before YEE arrives. They witness YE who is trying to shot YEE. They shot YE so as to stop her. YEE jumps forward to rescue the murderer. She then knows more about the case. He follows YE's elder sister to a children centre. He is shocked to find out that this centre named ‘Angel’.
Episode 6
YUNG finds out that the handicapped children at 'Angel Children Centre’ were all victims of the prohibited medicine 'Aldalin'. Meanwhile, YE's statement stated that her elder sister had taken this medicine which made her given birth to a handicapped baby. This in turn destroyed her marriage. The victim, SUM, had extorted money from her. YE thus killed SUM for redemption. YE's elder sister has eventually told her current husband the truth. They give statement at court in the hope of mitigating YE's charge. The case has eventually come to an end. YEE and YUNG and CHIN's girlfriend go to the Lantan Island to visit the Buddhist Statue. YUNG has taken the wrong knapsack. Later, he receives a phone call from a mysterious woman who wants to get back her knapsack. YUNG goes to meet this woman according to her instruction. Unexpectedly, he finds that the owner of this knapsack had been died a year ago.
Episode 7
YEE and YUNG check the old file. They find out that the victim named MEI. She committed suicide a year ago together with her boyfriend, HON, who is a foreigner. YEE and YUNG inspect the satchel. They discover a letter which was written by MEI to FUNG (who had died 5 years ago). It depicts how they were persecuted by Butterfly. YEE and YUNG even receive a call front MEI’s spirit. She implores them to clear the case for her. They find out that both FUNG and HON did have an affair with a rich lady, TING, who has married.FUNG is the member of the Butterfly Club. He had been fallen in love with TING. FUNG had fell down from a cliff and died five years ago when he tried to catch a butterfly. HON is TING’s subordinate. CHIT is asked to investigate TING. YEE and YUNG go to MEI's school for some hints. They find out that MEI and CHIT are classmates. CHIT's plot is unveiled.
Episode 8
CHIT tells them that MEI was killed by TING as she has an affair with ON (TING’s husband). YEE and YUNG does not believe CHIT’s words. They further investigate. They apply for reading MEI and HON’s coroner’s report. They find out that MEI and HON had taken too much sleeping pills. Besides, MEI was strangled by a tie and HON hanged himself on the tree. The spot was a villa belonged to Hon's good friend. HON always went there with a mature lady. Moreover, a child states that MEI was a new face to him and she rarely went there. This indicates that MEI is not HON's real girlfriend. Moreover, LAI had also been to Japan five years ago. It is claimed that FUNG tried to catch a special butterfly and unfortunately fell down from the cliff. TING is the only witness. However, LAI finds out that the kind of special butterfly had already extinct as the kind of special bean which those butterflies depended on was in shortage.
Where does Detective Investigation Files rank today?
Detective Investigation Files is #403 on the CineFlixo Daily Streaming Charts today.
- Highest: #403
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Watch Detective Investigation Files Online Free — All Episodes in HD
If you've been searching for Detective Investigation Files all episodes in HD, CineFlixo has you covered. This highly acclaimed CN mystery, crime, and drama title from 1995 is available to stream instantly — no ads to fight through, no paid subscriptions, no annoying redirects.
About Detective Investigation Files
"Detective Investigation Files" revolves around the professional and meticulous investigations carried out by a group of dedicated police officers. As they delve into mysterious deaths with unclear causes, they tirelessly work towards maintaining peace and security for the people. However, their demanding job often comes at the expense of personal happiness. Cheung Dai Yong, a brilliant and astute police officer, has a track record of solving crucial cases. His trusted colleague, Lee Chung Yee, stands by his side, and together they tackle challenging and complex cases. Amidst their work, Dai Yong encounters Ko Jit, a tenacious journalist. Despite their initial conflicts, a deepening connection blossoms between them. However, Ko Jit already has a romantic partner. Across 4 seasons and 150 episodes, originally airing on TVB Jade.
Detective Investigation Files Cast and Characters
The cast features Louis Koo (as 徐飞 Tsui Fei), Jessica Hsuan (as 武俏君 Mo Chiu Kwan (Queen)), Sunny Chan Kam-Hung (as 江子山 Kong Tze San), Charmaine Sheh Sze-Man (as 文婉兰 Man Yuen Lan (Man)), and Lee San-San (as 唐心如 Tong Sum Yu). Their performances are a major reason Detective Investigation Files has built such a passionate audience.
Where to Watch Detective Investigation Files Online
Want to watch Detective Investigation Files online without paying? CineFlixo is the easiest way. Click play and the series starts in seconds. No popups, no "5 day trial that auto-charges" — just the show.
▶ Watch Detective Investigation Files NowWhy People Are Watching Detective Investigation Files
There's a reason Detective Investigation Files 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
Where can I watch Detective Investigation Files online for free?
You can watch Detective Investigation Files 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 have?
Detective Investigation Files has 150 episodes across 4 seasons. All episodes are available to stream right here on CineFlixo.
Is Detective Investigation Files good? What's the rating?
Detective Investigation Files holds a 8.1/10 rating based on 10 reviews — genuinely excellent.
Who is in the cast of Detective Investigation Files?
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 available in CN?
Yes — Detective Investigation Files was originally produced in CN and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was Detective Investigation Files released?
Detective Investigation Files first aired in 1995.
Do I need an account to watch Detective Investigation Files on CineFlixo?
No. CineFlixo is free and you can watch Detective Investigation Files without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
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Frequently Asked Questions
Where can I watch Detective Investigation Files for free?
You can watch Detective Investigation Files online for free on CineFlixo. All 150 episodes across 4 seasons 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 have?
Detective Investigation Files currently has 4 seasons and a total of 150 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 about?
"Detective Investigation Files" revolves around the professional and meticulous investigations carried out by a group of dedicated police officers. As they delve into mysterious deaths with unclear causes, they tirelessly work towards maintaining peace and security for the people. However, their demanding job often… It belongs to the Mystery, Crime, Drama genres.
In which language is Detective Investigation Files originally available?
Detective Investigation Files 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 first released?
Detective Investigation Files first premiered on March 13, 1995 (1995). The series has since concluded its run.
All Seasons
Browse every season of Detective Investigation Files — 4 seasons in total
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