Jim Foster believes all his Christmases have come at once when he lands the job of manager at an ailing pub. But things are not as they seem. Profits are low, and his busty barmaid seems to enjoy pulling more than pints.

One night he follows her to the cellar, only to discover that behind the barrels of beer is a secret door that leads to a sex dungeon where the locals endure a very special brand of punishment. Jim himself becomes a prisoner in the dungeon and is forced to endure night upon night of sexual torment. Will he ever see the light of day again? Or will this place of debauchery be his home forever?