This Korean horror film is set towards the end of the Vietnam conflict. I was really impressed by this. The basic plot is that a platoon of Korean soldiers went missing at R-Point, a former French plantation in Vietnam. A new group of soldiers is sent to investigate the disappearance after a radio message is received from the missing squad claiming they are still alive. There are two amazingly creepy scenes in it and, although it owes a lot to John Carpenter's THE THING when it gets down to a few guys left, it keeps up the intensity. The film is also impressive because it is an Asian horror film that made it to Korean theaters and no one has purchased the US remake rights.
