The Conqueror Worm

In 1645, during the English Civil War, Matthew Hopkins (Vincent Price), an opportunist and witchhunter, takes advantage of the breakdown in social order to impose a reign of terror in East Anglia. Hopkins and his assistant, John Stearne (Robert Russell), visit village after village, brutally torturing confessions out of suspected witches. They charge the local magistrates for the work they carry out.

Richard Marshall (Ian Ogilvy) is a young Roundhead. After surviving a brief skirmish and killing his first enemy soldier (and thus saving the life of his Captain), he rides home to Brandeston, Suffolk, to visit his lover Sara (Hilary Dwyer). Sara is the niece of the village priest, John Lowes (Rupert Davies). Lowes gives his permission to Marshall to marry Sara, telling him there is trouble coming to the village and he wants Sara far away before it arrives. Marshall asks Sara why the old man is frightened. She tells him they have been threatened and become outcasts in their own village. Marshall vows to Sara, "rest easy and no-one shall harm you. I put my oath to that." At the end of his army leave, Marshall rides back to join his regiment, and chances upon Hopkins and Stearne on the path. Marshall gives the two men directions to Brandeston then rides on. Read more on Wikipedia.