A teenage girl is captured by a giant mutated squid-like creature that appears from Seoul's Han River after toxic waste was dumped in it, prompting her family into a frantic search for her.

Top Cast

Song Kang-hoPark Gang-du

Byun Hee-bongPark Hie-bong

Park Hae-ilPark Nam-il

Bae DoonaPark Nam-joo

Ko AsungPark Hyun-seo

Oh Dal-suThe Monster (voice)

Lee Jae-eungSe-jin

Lee Dong-hoSe-joo