4th Period Mystery

4th Period Mystery (2009)

Your Rating:
Ratings: 7.6/10 from 2,395 users
Reviews: 13 users

11:40 AM - During 4th period when all the students are in gym class, top student Jeong-hun (Yu Seung-Ho) walks into a classroom to find fellow classmate Tae-gyu (Jo Sang-Keun) brutally murdered. Jeong-hun and Tae-gyu has had a history of disliking one another.
11:50 AM - Da-jeong (So-ra Kang) walks into the same classroom and discovers Jeong-hun with blood covering his clothes standing near the murdered body. Da-jeong is a mystery buff read moreherself and loves to use her deductive reasoning. She realizes that Jeong-hun is the prime suspect, but doesn't believe that he killed Tae-gyu. There's only 40 minutes before next period, in which all the students will come into the classroom and also discover the dead body.
12:05 PM - Jeong-hun and Da-jeong frantically search for the real killer before the next period starts. With Da-jeong using her deductive reasonings they get closer to finding the identity of the true killer. Jeong-hun's best friend Do-il (Kim Dong-Beom) then takes part in finding the killer. When the 40 minutes are almost up, they then discover a brutal new fact to the case ...

  • Native title:

    4교시 추리영역
  • Also Known as:

    4th Period Murder Mystery; Fourth Period Mystery; 4Gyoshi Churi Yeongyeok; Detective in 40 Minutes; The Clue;

Add Cast Show More Cast (8)Cast

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Write a Review More Reviews (11) Reviews

20 people found this review helpful
Other reviews by this user
Apr 4, 2012
  • Overall 9.0
  • Story 8.0
  • Acting/Cast 10
  • Music 9.0
  • Rewatch Value 8.0
Well, Well, Well... I didn't expect this film to be that good after reading the synopsis, but I was pleasantly surprised. Considering that this was one of the first films the young actors had played in their acting was spot on. With this kind of film it could be easy for them to go over the top and become unlikeable horrible teenagers but I found them relatable and more importantly likeable.

The read more storyline was good, it had be guessing at the murderer all the way through and wasn't obvious. The film was just right in length, short enough to keep the thrills up and long enough to tell the story without confusion.

Watch this if you love a good mystery but with a bit of comedy and doesn't take itself too seriously.
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8 people found this review helpful
Other reviews by this user
Feb 5, 2013
  • Overall 7.0
  • Story 7.0
  • Acting/Cast 8.0
  • Music 6.0
  • Rewatch Value 7.0
I watched this movie, because I read an interview of Yoo Seung Ho where he says that he doesn't think he was that good of an actor when he was younger (LOL Younger, when he is only 20 now). Anyway, I decided to go back a few years and check out his acting for myself.

I thought that Yoo Seung Ho and Kang So Ra were really good. I have a soft read more spot for Kang So Ra anyway and I was pleasantly surprised to find her in this movie. The story is fairly simple and suspenseful. I love Kang So Ra's character Da Jeong. I like when the female lead is smart.

I think that most people would enjoy this movie.
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Make a Recommendation More recs (7)Recommendations

Both series take place in a mysterious and eerie school setting. Both main characters try to uncover the mystery that is in their school and face challenges while solving the problem.
Recommended by SunnySideEgg
Both are thriller, mystery type movies which Yoo Seung Ho is the leading actor.
Recommended by Syranus

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Comments (9)

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    Senpai May 11, 2017

    Very obvious ...
    Mystery, suspense, action and a hint of romance describe 4th Period Mystery, Jeong-hun (Yoo Seung Ho) is envied and loved by many by being the number 1 in the country already to Da Jeong for reading many murder books she always knew What to do and for the viewer does not have to get even in the middle of the movie to remove who is the author, the real killer. That is, from the middle of the film onwards the suspense ends.

  • Reply
    mamamIYA Sep 15, 2016

    If you want, just watch the trailer or search for another synopsis on the internet.

  • Reply
    mamamIYA Sep 15, 2016

    If you want, just watch the trailer or search for another synopsis on the internet.

  • Reply
    Fanbender May 22, 2016

    I didn't think much of this. It was a cute solid mystery movie.

  • Reply
    Syranus Mar 5, 2016 - edited

    A movie for teens; just simple. It's good but I'm not a fan of this. I love YSH and KSR, though.

  • Reply
    Red Feb 8, 2016

    awresome movie xD

  • Reply
    LunaMoon Sep 16, 2015

    You can find this movie with the name The clue on drama.net or dramanice.tv

  • Reply
    Mahnoosh Jan 1, 2015

    :| :|

  • Reply
    Yume May 15, 2014

    changed its name?

  • Reply
    twicky Apr 30, 2014

    I enjoy watching this movie, so cute. xD

  • Reply
    bojinator Feb 14, 2014
    Reveal Spoiler »
  • Reply
    xKellyGirlx Dec 9, 2013

    That pinch of romance was just right for this movie! Short but enjoyable for a day's casual movie time ~ :D

  • Reply
    arang Aug 11, 2013

    kinda predictable but still good movie...there's amount of thrill and cuteness :D

  • Reply
    LeeMeymon Aug 3, 2013

    Yay, first Korean movie I've watched. Best:)

  • Reply
    Naaoi Jun 2, 2013

    I love this movie *-*


  • Country:

    South Korea
  • Type:

  • Release Date:

    Aug 13, 2009
  • Duration:

    1 hr. 26 min.


  • Score:

    7.6 (scored by 2,395 users)
  • Ranked:

  • Popularity:


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