Within the grimy walls of a notorious prison, inmates endure brutal oppression from corrupt guards, violent rival gangs, and a tyrannical warden. When a mysterious new prisoner arrives, a malevolent entity unleashes a gruesome supernatural rampage, targeting those with the darkest souls and displaying their bodies as macabre works of art. As fear spreads, sworn enemies must confront the horrors of their own actions before uniting to survive and unmask the truth behind the haunted prison.