Shutting all the windows isn't enough, so she lights a roaring fire in the fireplace and falls asleep on the hearthplace rug.
Betty explores the underworld, and sings "Hell's Bells" for Satan and his minions.
When Satan tries to put the moves on Betty, she fixes him with a (literally) icy stare, freezing him and all of Hell.
When she falls through a hole and onto an icy surface below, Betty wakes up to find the fire out with the windows open and her bed frozen, and she goes to bed, this time under a pile of warm quilts.
In 1934 the film was rejected by the BBFC in the United Kingdom,[2] because it depicted Hell in a humorous manner, which was deemed blasphemous.