

4th Period Mystery
2009, Korean. Directed by Lee Sang-yong.
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.
- Runtime
- 1h 26m
- Post-credits
- None listed
- Language
- Korean
- Rated
- Check local
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4th Period Mystery isn’t on a subscription OTT platform in India, but you can watch it free or rent it or buy it online.
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Availability in India as of 12 November 2026. Streaming data by JustWatch.
Cast & crew
Details
- Released
- 12 August 2009
- Original title
- 4교시 추리영역
- Country
- South Korea
- Written by
- Shin Jai-ho
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4th Period Mystery: quick answers
Is 4th Period Mystery worth watching?
4th Period Mystery doesn’t have enough ratings for a verdict yet.
How long is 4th Period Mystery?
4th Period Mystery runs 86 minutes (1h 26m).
Does 4th Period Mystery have a post-credits scene?
None is listed for 4th Period Mystery. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
4th Period Mystery parents guide: is it suitable for kids?
No age rating is listed for 4th Period Mystery yet.
Which OTT platform is 4th Period Mystery on?
4th Period Mystery isn’t on a subscription OTT platform in India, but you can watch it free or rent it or buy it online. (Checked 12 November 2026.)
What movies are like 4th Period Mystery?
If you liked 4th Period Mystery, try The Seven-Ups, Private Eye, Oscar Shaw.
Who directed 4th Period Mystery?
4th Period Mystery (2009) was directed by Lee Sang-yong and stars Yoo Seung-ho, Kang So-ra, Jo Sang-geun.