- Country: South Korea
- Genres: Thriller
- Release: 2009-12-03
- Director: Je-gu Yun
- Writers: Je-gu Yun
- Language: Korean
- Stars: Seung-won Cha , Song Yun-ah , Ryu Seung-ryong , Joon-seo Bang , Lee Cheol-min , El Lee , Hyo-ju Park , In-gi Jeong , Kim In-kwon , Jae-goo Lee
- Runtime: 105 min
- Awards: N/A
- AKA: Secret , シークレット(2010) (Japan) , Sikeurit (Korea) , Sikeurit , Тайное расследование (Russian Federation) , Secret (United Kingdom) , Secret (United States of America)
- Plot:
A detective suspects that his wife murdered a gangster’s brother. As he tries to misdirect the police and the bloodthirsty gangster while independently investigating his wife, terrible secrets slowly begin to surface.
- IMDB:tt1533086
Secret Cast · · · ALL
Je-gu Yun
Director
Seung-won Cha
Det. Seong-ryeol Kim
Song Yun-ah
Ji-yeon Yu
Ryu Seung-ryong
Je-kal
Won-sang Park
Det. Choi
Jeong-se Oh
Kyeong-ho
Kim In-kwon
Seok-jun
Hyo-ju Park
Hye-jin
Eun-yong Yang
Eun-young
Ye Soo-jung
Ji-yeon's mother
Lee El
Young-sook
Um Tae-goo
Man on phone (uncredited)
Im Gi-hong
Detective