Vigilante Force is a 1976 American action film concerning a Vietnam War veteran (Kris Kristofferson) and his buddies, who are hired by his brother (Jan-Michael Vincent) and others in a small California town for protection from rowdy oil-field workers.

Francis Barnard goes to Spain, when he hears his sister Elizabeth has died. Her husband Nicholas Medina, the son of the most brutal torturer of the Spanish Inquisition, tells him she has died of a blood disease, but Francis finds this hard to believe. After some investigating he finds out that it was extreme fear that was fatal to his sister and that she may have been buried alive!