Edgar Allan Poe is the master of suspenseful horror. And a lot of his stories are set in the Middle Ages. The Pit and the Pendulum is no exception.
Set during the Spanish Inquisition it focuses on the Grand Inquisitor Torquemada.
This is the 1991 version directed by Stuart Gordon and starring Lance Henriksen. The plot is altered a little from the original story but it still holds to the horror of the inquisition.
A good watch for your Halloween night!