Amoeba Music

Careless American military personnel dump chemicals into South Korea's Han River. Several years later, a creature emerges from the tainted waters and sinks its ravenous jaws into local residents. It abducts Hyun-seo (A-sung Ko), the daughter of Kang-du (Kang-ho Song), who works at a food stand on the banks of the river. The government announces that the monstrous thing is the host of an unidentified virus. Having feared the worst, Kang-du receives a phone call from his daughter who is frightened but very much alive. Kang-du soon makes plans to infiltrate the forbidden zone near the Han River to rescue his daughter.