Terror at Orgy Castle

This entirely silent descent of a young couple into the terrors of Countess Dominova's castle follows Bill and Lisa, a young couple winding up their European vacation, through a delectable ordeal. They decide to spend the night at Orgy Castle, and their lives will never be the same after Bill makes love to a succubus, Lisa becomes the devil's paramour, and the pair becomes involved in the creepy proceedings of a terrifying black mass. (official distributor synopsis)