In 645 AD, the Tang Dynasty’s emperor Li starts his invasion into Goguryeo, one of the ancient kingdoms of Korea. One victory after another, the Tang army marches into Ansi, protected by General Yang, the lord of the fortress. Abandoned by his country and outnumbered by thousands, the brave general gathers his men and women to face the Tang army on his own.
Sang-min comes to Finland to send her autistic son to a special camp. She feels so alienated in snow covered-white Helsinki. Ki-hong is an architect working in Finland on dispatched duty. His family is not so perfect either with a daughter having child depression and mentally unease wife. The two meet for the first time at the gathering point of this special camp. They get to have a short trip to the camp together in silence but start to feel comfortable and connected to each other. On their way back to Helsinki, with the road blocked from heavy snow, Sang-min and Ki-hong are isolated in a cabin by the forest and lake. Carried away by irresistible passion, they spend a night together. But the next day, they go separate ways without asking each other’s name…
The film is based on a true yet unsolved murder case from the early 1990s that is known among Koreans as the “disappearance of the frog children.” In 1991, five elementary school students told their parents that they were going to hang out on a nearby mountain to catch frogs, and then they go missing.