Robert Parrish’s A Town Called Hell, starring Robert Shaw and Telly Savalas, is a violent Euro-Western set during the Mexican Revolution. When a ruthless priest takes control of a small town, a bandit leader and a mysterious widow become entangled in betrayal, shifting loyalties, and bloody revenge. Mixing spaghetti western style with political undertones, it stands as a gritty example of the international western wave of the early 1970s.

Från IMDB:
A group of Mexican revolutionaries murders a town priest and a number of his christian followers. Ten years later, a widow arrives in town intent to take revenge from her husband's killers.