Ape Creature In Dungeon

I vaguely remember a film clip about woman being dragged down a spiral staircase in a medieval castle by a guy in a black robe.  He opens a dungeon door and pushes her inside where she is attacked by a Ape/Monster much to the delight of the robed man .

Do you know the name of it.  I think it was banned in the UK as a video nasty.

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