Prison is a 1987 horror film starring Viggo Mortensen. It was filmed at the Old State Prison in Rawlins, Wyoming, with many of its residents on the cast and crew.
When Creedmore Prison is reopened after thirty years, it has not been standing empty. Charlie Forsythe is back still charged with electric heat. Waiting for Eaton Sharpe Lane Smith the man who stood by as Forsythe rode the electric chair.Forsythe quickly makes up for lost time as his vengeance rises to a fever pitch of violent fury. Burke Viggo Mortensen and the other inmates soon realize that they will all be slaughtered unless Forsythe is allowed to repay his longstanding debt. With the lives of Creedmore in the balance, Sharpe and Forsythe are finally brought facetorottingface in a duel that will pit Forsythes supernatural rage against Sharpes bloodthirsty instinct for survival. ........
Source: Wikipedia