While under heavily armed guard, the dangerous convicts aboard a cargo ship unite in a coordinated escape attempt that soon escalates into a bloody, all-out riot. But as the fugitives continue their brutal campaign of terror, they soon discover that not even the most vicious among them is safe from the horror they unknowingly unleashed from the darkness below deck.
Ha-neul, who is unemployed, moves to his best friend Bong-sik's house after breaking up with his lover. Together, they face the woes of love and relationships.