Tabitha. Shelby. Lisa. They're longtime friends on seperate life paths. But they share a horrific destination when a seemingly innocent incident from their school days comes back to terrify them. Something - someone - wants payback: warped vengeance... mind-games vengeance... taunting, shredding, slashing vengeance. Inside a stone-walled chamber of prison cells and mechanisms of doom, the three women and other victims face a fierce fight to survive. Who lives? Who dies? It's all for someone's Amusement.