Ap-lok river flows between North Korea and China. A point along the river runs about 48 meters. There, North Koreans risk their lives by trying to cross the river. Real stories of those people who attempt to cross the river are told.

Ae-rang is a celebrated gisaeng who has the ability to knock out any man in the world with the flick of her hand or skirt and in the blink of an eye. She's got the men eating out of her hands with bedtime techniques that no one else knows about. One day, an impregnable man who won't date anyone is assigned to her village. The magistrate and Ae-rang secretly bet that she will or won't be able to have him begging for her.