4th Period Mystery
4교시 추리영역
We checked 8 streaming services in India on 05 Jun 2026 at 10:42 IST
About
During fourth period, high schooler Da-jeong finds her classmate Tae-gyu dead in a classroom and Jeong-hun standing in front of him with blood on his clothes. In order to stop Jeong-hun from becoming the prime suspect, Da-jeong must help him find the real murderer, who is still inside the school building, under 40 minutes before period four ends.
Cast
Yoo Seung-ho
as Han Jung-hoon
Kang So-ra
as Lee Da-jeong
Sang-geun Jo
as Kim Tae-gyoo
Jeong Seok-yong
as Kang Gook-man
Jeon Jun-hong
as Embassy
Rie Young-zin
as Yun Sang-mi
Kim Dong-beom
as Do-il
Jo Yun-hei
as Hong Ju-hee
Lee Chan-ho
as
Im Soo-hyang
as
Jung Young-ki
as
Park Cheol-min
as Crazy
Oh Jin-ha
as Student in Grade 2 Class 5
Kim Min-su
as Virtual Criminal
Choi Hong-rak
as Student in Grade 2 Class 5
Where does 4th Period Mystery rank today?
4th Period Mystery is #10000 on the CineFlixo Daily Streaming Charts today.
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Watch 4th Period Mystery Online Free in HD
If you've been searching for 4th Period Mystery full movie in HD, CineFlixo has you covered. This talked-about Coreano crime, mystery, thriller, and action title from 2009 is available to stream instantly — no ads to fight through, no paid subscriptions, no annoying redirects.
About 4th Period Mystery
During fourth period, high schooler Da-jeong finds her classmate Tae-gyu dead in a classroom and Jeong-hun standing in front of him with blood on his clothes. In order to stop Jeong-hun from becoming the prime suspect, Da-jeong must help him find the real murderer, who is still inside the school building, under 40 minutes before period four ends. Running 86 minutes.
4th Period Mystery Cast and Characters
The cast features Yoo Seung-ho (as Han Jung-hoon), Kang So-ra (as Lee Da-jeong), Sang-geun Jo (as Kim Tae-gyoo), Jeong Seok-yong (as Kang Gook-man), and Jeon Jun-hong (as Embassy). Their performances are a major reason 4th Period Mystery has built such a passionate audience.
Where to Watch 4th Period Mystery Online
Want to watch 4th Period Mystery online without paying? CineFlixo is the easiest way. Click play and the film starts in seconds. No popups, no "5 day trial that auto-charges" — just the show.
▶ Watch 4th Period Mystery NowWhy People Are Watching 4th Period Mystery
4th Period Mystery 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 Coreano 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 4th Period Mystery
Where can I watch 4th Period Mystery online for free?
You can watch 4th Period Mystery 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 4th Period Mystery?
4th Period Mystery runs for 86 minutes (about 1.4 hour).
Is 4th Period Mystery good? What's the rating?
4th Period Mystery holds a 5.8/10 rating based on 23 reviews — a niche pick worth checking out.
Who is in the cast of 4th Period Mystery?
The main cast includes Yoo Seung-ho, Kang So-ra, Sang-geun Jo, and Jeong Seok-yong, plus a strong supporting ensemble.
Is 4th Period Mystery available in Coreano?
Yes — 4th Period Mystery was originally produced in Coreano and that's the version you'll stream here on CineFlixo. English subtitles are provided when available.
When was 4th Period Mystery released?
4th Period Mystery was released in 2009.
Do I need an account to watch 4th Period Mystery on CineFlixo?
No. CineFlixo is free and you can watch 4th Period Mystery 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
Common questions about 4th Period Mystery
Where can I watch 4th Period Mystery for free?
You can watch 4th Period Mystery (2009) online for free on CineFlixo. Just click "Watch Free" on this page to start streaming instantly — no account, subscription, or downloads required.
What is 4th Period Mystery about?
4th Period Mystery is a Crime/Mystery film. During fourth period, high schooler Da-jeong finds her classmate Tae-gyu dead in a classroom and Jeong-hun standing in front of him with blood on his clothes. In order to stop Jeong-hun from becoming the prime suspect, Da-jeong must help him find the real murderer, who is still inside the school building, under 40 minutes before period four ends.
When was 4th Period Mystery released?
4th Period Mystery was released on August 12, 2009. It has a runtime of 1h 26m. The film was produced by Sway Entertainment.
Who stars in 4th Period Mystery?
4th Period Mystery stars Yoo Seung-ho, Kang So-ra, Sang-geun Jo and Jeong Seok-yong. The full cast list is available in the Cast section above.
Is 4th Period Mystery available in HD?
Yes, 4th Period Mystery is available to stream in high definition (HD) on CineFlixo. Our players automatically deliver the best quality your connection supports — no extra setup needed.