1x66 - Heathcliff and the Catillac Cats

Riff Raff must survive one night in a haunted mansion to win a contest of bravery for Cleo's affections. The Catillac Cats accompany Riff Raff, and are terrorized by all manner of embodied spirits. In the end, however, Riff Raff manages to employ the spooks to frighten away the competition for his love.