As part of his Edgar Allan Poe series in the 1960s (including The Raven, House of Usher, and The Masque of the Red Death), Roger Corman created The Pit and the Pendulum, based on one of Poe's best-known works.
Well, in title, anyway. The story, about a man trapped in the torture chamber during the Spanish Inquisition isn't so well-known itself. And Corman and writer Richard Matheson (The Omega Man) take some extensive liberties with the story, turning into a tale about the son (Vincent Price) of a Spanish Inquisitor who inherits his father's house of horrors (torture chamber included). His adulturous wife (Barbara Steele) has faked her own death and is trying to drive her husband crazy... and when she succeeds, she gets more than she bargained for.
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