Newly engaged, Brad and Janet travel across the country and get stranded in the middle of nowhere after their car breaks down. They seek help in a castle, but are greeted by lord of the castle Frank N. Furter and his bizarre party. Janet distrusts the castle and the lord of the manor and wants to get away as quickly as possible. But before that happens, Mr. Furter invites her on a tour of the estate, where a huge party is taking place. A tour that the couple will never forget.