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.
Song Kang-ho
Byun Hee-bong
Park Hae-il
Bae Doona
Ko Asung
Oh Dal-su
Lee Jae-eung
Lee Dong-ho
Yoon Je-moon
Yim Pil-sung
Kim Roi-ha
Koh Soo-hee
Park No-shik
Kim Hak-sun
Scott Wilson
Brian Rhee
Paul Lazar
David Anselmo
Shin Seung-ri
Kwon Byung-gil
Son Jin-ho
Baek Do-bin
Park Jeong-gi
Jung In-gi
Park Jin-woo
Maeng Bong-hak
Son Jin-hwan
Kwon Hyeok-pung
Shin Hyeon-jong
Yoo Seung-mok
Jeong Kang-hee
Lee Eung-jae
Kim Jin-seon
Park Kyeong-mok
Kwon Bang-hyeon
Son Young-soon
Kim Sang-jo
Choi Doo-yeong
Song Kyeong-ha
Lee Jong-yoon
Lee Dong-yong
Jeong Hyeong-Ho
Kim Da-yeon
Ji Ha-geon
Moon Hee-ra
Jung Seo-yoon
Lee Hoon-jin
Ra Mi-ran
Seo Ha-neul
Lee Seung-jin
Choi Dae-sung
Kim Nan-hee
Kim Choo-wol
Min Kyung-jin
Kim Bi-bi
Kim Hyo-sun
Choi Jae-sup
Yoo Yeon-soo
Ko Chang-seok
Yoo In-soo
Seo Young-ju
Martin Lord Cayce
Clinton Morgan
Philip Hersh