Baek Woon-Hak

This is a touching action epic about an all-out war between a subway terrorist who holds a city hostage and the detective who risks his life to save everyone. It's the heart-wrenching story of love and sacrifice that grows in a desperate situation, and the humanity of people trying to save others in the face of extreme danger at breath-taking speeds and on a huge scale. (imdb)

Detective Squad Chief Choi is set for a promotion. He has a party with his co-workers to celebrate, but, on the way home, a crime occurs and he accidentally commits murder. Because of his promotion, he decides to cover up the crime. The next morning, TV news reveals a body is hanging from a crane at a construction site. Choi is shocked because the body hanging is the person he killed last night. He takes charge of the murder investigation.