Storyline: Terry and Ann are two "swingers" who spend the night in a spooky old house, where they're subjected to bizarre sexual experiments by Mr Bradley and his deranged sister.
Release Date: 1968-12-11
Original Language: en
Original Title: Behind Locked Doors
Status: Released
Runtime: 80 minutes
TagLine: What Was the Terrifying Secret of the Cellar?
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