Brian Yuzna (NECRONOMICON, BEYOND RE-ANIMATOR) bases his chilling tale on a novel by Spanish author Alberto Vazquez Figueroa, adding science-fiction overtones and setting the action in a seemingly post-apocalyptic world. Dante (William Miller) is an inmate of a grim, brutal prison. He is carefully plotting his escape, but the facility possesses an apparently undefeatable weapon in Rott, a dog that was brought back from the brink of death and turned into a killing machine. Trained to instill members of a chain gang with an incapacitating fear, Rott has steel incisors implanted in his jaw and a taste for blood. But escaping the prison will not ensure Dante's safety, for this mechanical beast won't stop until his prey is overcome. Meanwhile, Dante's path crosses that of a group of thrill-seeking teenagers, marking them for the kill as well. The fright-fest features excellent special effects by Vincent Guastini, and an appearance by the great Spanish horror actor Paul Naschy (KING OF KINGS, FRANKENSTEIN'S BLOODY TERROR).