The Pit and the Pendulum

It is almost impossible to escape the Spanish Inquisition alive. However, Edgar Allan Poe's unnamed narrator, after suffering innumerable tortures upon his body and soul in the hands of his tormenters, sees the light of the day at the very end of his sanity's tether. Even despite the lack of supernatural elements, "The Pit and the Pendulum" (1842) has enjoyed and influenced several notable movie adaptations.
Animations such as The "Flinstones", TV series like "Crime Scene Investigation", to films like Roger Corman's "The Pit and the Pendulum" (1961), starring Vincent Price and some torture methods found in the "Saw" franchise, the story's famous pendulum scene is a rather fruitful source of inspirations. Yet, despite the terrific torments, the story focuses primarily on how terror is implicitly depicted through the workings of the mind.