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Berlin in 1986 was a time when everyone was wary. A man becomes everyone's target because of one mistake. Economist Young-min is convinced by a Northern spy to move North under the pretext of safety for his family and himself. However, he realizes this is a mistake and escapes to West Germany where he is parted from his family. To make things worse, he is under surveillance by various countries that want to use him for different purposes.

Upon the retirement of the father, who has been a teacher at Cheorwon Technical High School, mother, two sons and daughters-in-law gather in Cheorwon. The retirement ceremony is rather quiet, and father drops the bombshell at a Chinese restaurant while eating. When he announces he will get a divorce, mother is so angry she doesn’t know what to say, and the sons and daughters-in-law are confused. Heavy snow hits Cheorwon keeping the buses from operating, and the family start an awkward time at the father’s residence.

One day, his mother who had sacrificed everything to a church to cure his elder brother's illness, kills herself. His good-for-nothing father has long been out of the picture, evading debtors. Siwan, left alone, goes to a provincial town and finds a young but revered minister of the church who has hidden himself in a small internet cafe. Siwan intends to avenge his mother himself but it's far from easy.