Yunhwa, who works at a shipyard to manage their livelihood after her husband′s accident, receives a notice of unfair dismissal. To make matters worse, their relatives suddenly come and try to take away the family land. Her son loses a large sum of money with Bitcoin, and her daughter dreams of escaping to Seoul while giving up her studies.
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.
A comedic idol music film about an unknown idol group named Bella, which has become a disorderly mess due to their agency’s poor treatment. Bella overcomes their conflict with an evil manager who tries to sell them off, and they eventually succeed in entering the Billboard charts.