With no clue how he came to be imprisoned, drugged and tortured for 15 years, a desperate man seeks revenge on his captors.
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.
Released after being wrongfully convicted and imprisoned for 13 years, a woman begins executing her elaborate plan of retribution.
