''4th Period Mystery'' (), released internationally as ''The Clue'', is a 2009 South Korean

thriller film Thriller film, also known as suspense film or suspense thriller, is a broad film genre that evokes excitement and suspense in the audience. The suspense element found in most films' plots is particularly exploited by the filmmaker in this genre ...

starring

Yoo Seung-ho Yoo Seung-ho (; born August 17, 1993) is a South Korean actor who rose to fame as a child actor in the film '' The Way Home'' (2002). Since then, he has starred in many television series and movie films as a child and teenager. After his two-yea ...

and Kang So-ra. It was released on August 12, 2009, and drew a total of 67,602 admissions.

Production

Casting

Originally, actress

Kim So-eun Kim So-eun (born September 6, 1989) is a South Korean actress. She rose to fame in 2009 in the popular television drama ''Boys Over Flowers''. She has since starred in '' Happiness in the Wind'' (2010), '' A Thousand Kisses'' (2011–12), ''Liar ...

was going to play the role of Dajung but she was replaced with Kang sora because of Kim's filming schedules for the TV series '' He Who Can't Marry'' .

Filming locations

The film was filmed in Sungsa middle school located in Goyang.

Plot

Jung-hoon (

) is the best student at his school. His rival, Tae-gyu (Jo Sang-geun), takes any and every opportunity to knock him down both verbally and physically, and the two are known enemies amongst the other students. One afternoon Tae-gyu pushes Jung-hoon too far and the latter threatens Tae-gyu with a knife, an act that's witnessed by another student. Jung-hoon walks away from the situation, but shortly after the beginning of 4th period class he returns to find Tae-gyu dead. The boy has been stabbed repeatedly, and still in shock, Jung-hoon picks up the bloody knife off a nearby desk just as Da-jung ( Kang So-ra) shows up, catching him in a most incriminating position. Fortunately for him, she not only believes his innocence, but offers to help him to solve the mystery and catch the real killer – a task made particularly urgent by the fact that in 40 minutes the rest of the class will return and the body will be discovered. The pair set out in search of the murderer and soon discover that just about everyone's a suspect and even more unsettling, the murderer is now after them as well.

Cast

as Han Jung-hoon * Kang So-ra as Lee Da-jung * as Kim Tae-gyu * as Byung-soo *Jeong Seog-yong　 정석용 as Kang Gook-man *

Park Chul-min Park Chul-min (born January 18, 1967) is a South Korean actor. Career Park Chul-min began acting in his high school drama club at Chosun University High School, and though he majored in Business Administration at Chung-Ang University, he spen ...

as Han Kang-man * Lee Young-jin as Sang-mi * Kim Ji-eun as Student * Kim Dong-beom as Do-il * as Tak Teu-in * as Principal * Im Soo-hyang * Sung Hyuk as a gym teacher * Kim Young-woong as history teacher

Indian remake

2016 Tamil movie

Pencil A pencil () is a writing or drawing implement with a solid pigment core in a protective casing that reduces the risk of core breakage, and keeps it from marking the user's hand. Pencils create marks by physical abrasion, leaving a trail ...

is a remake of the movie.

References

External links

* * * * 2009 films 2009 action thriller films 2000s mystery thriller films 2000s chase films South Korean crime thriller films South Korean mystery thriller films South Korean teen films 2009 crime thriller films Lotte Entertainment films 2000s Korean-language films South Korean chase films South Korean films remade in other languages 2000s South Korean films {{crime-thriller-film-stub