Tube

Tube (Korean: 튜브) is a 2003 South Korean action thriller film directed by Beak Woon-hak. The film features police officer Jay who is a subway police officer who spends his days reminiscing over his lost lover. The pickpocket Kay becomes infatuated with Jay and tips him off about the government assassin Bishop hijacking a subway car. Both Jay and Kay find themselves in the target car when the Bishop makes his move.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.