The Classified File (Korean: 극비수사; RR: Geukbisusa; lit: A Secret Investigation) is a 2015 South Korean crime drama film directed by Kwak Kyung-taek based on a real-life 33-day kidnapping case in Busan in 1978.

[2][3][4][5] It stars Kim Yoon-seok and Yoo Hae-jin in the lead roles.

Without any contact from the kidnapper in the past two weeks and no further leads or clues, the police assume that she's dead.

Eun-joo's desperate mother turns to renowned fortune-teller Kim Joong-san, who tells her that her daughter is still alive and that she can be saved if they enlist the help of veteran detective Gong Gil-yong.

When one of Joong-san's premonitions about the investigation comes true, Gil-yong begins to believe in his psychic abilities, and the two men team up in an unlikely partnership to find Eun-joo and bring her home.