In the summer of 1969, Colonel Kim Jin Pyeong returns to South Korea after serving in Vietnam. He is suffering from post-traumatic disorder and trapped in a loveless marriage with Soo Jin, who is desperate for a child. One night, Jin-pyeong encounters Ga-heun, the Chinese-Korean wife of one of the recently transferred captains, and falls into a fatal and obsessive love affair that forces him to give up everything he has achieved.