Visible crew/equipment: When Victor and Margret are arguing at the door you can see the background is a sheet, and it moves at one point.
Visible crew/equipment: When Victor and Margret are arguing at the door, a stage light is just visible to the side of the door.
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Suggested correction: No, this is not the case.
The Pit and the Pendulum - S4-E1
Revealing mistake: The inside of the kitchen set doesn't match the external shot of the real location when looking at the inside of the kitchen door. The studio has a flat wall with green patterned wallpaper, where the real kitchen has a cupboard, white handles and the worktop directly next to the door side.
