In summer 1972, strange radio transmissions are received from soldiers of Battalion 53--soldiers who were thought to be dead six months earlier. Traumatized Choi Tae-in, still recovering in the hospital from a battle in which he was the only survivor, is sent with a platoon of hicks, nuts and psychos to investigate the source of the radio signals in a Bermuda Triangle-like area known as R-Point. For five days the motely crew, who are being shot at by mysteriously invisible Viet Cong, hole up in a decaying mansion, and slowly realize the mansion is haunted by people massacred by Chinese 100 years earlier. One by one, members of the group go down.