Follows one mother's nightmarish struggle to retrieve the 7-year-old son her ex-husband whisked out of her life when he abducted the boy and took him back to his native South Korea.

In Seoul, an American army doctor forces his assistant to dump bottle after bottle of formaldehyde into the drain. The drain runs into the Han River, the major river running through the middle of Seoul. His only reason is that the bottles are covered with a layer of dust. Six years later, a food cart operator, Gang-du falls asleep every time his dad, Hie-bong, is away from the stand for more than a few minutes. Soon, his daughter, Hyun-Seo returns...