Grampy sends Betty Boop a letter inviting her to a party and asking her to bring the gang. Two piano movers, a fireman and a traffic cop all drop what they're doing to join in. Grampy's various contraptions, and his novel uses for household objects, make his place loads of fun. He even manages to improvise music with an electric fan, a tea kettle, a pair of gloves and a piece of pipe from his oven. Everyone has a good time, but Grampy proves to be the most youthful of the bunch.
Grampy is not a particularly appealing (or unappealing) character; but his inventions are always very funny. Betty has little to do in this cartoon, except attract men to Grampy's party. By the time this was made, the censors had de-Boop-ified Betty: reducing her from a cute little tease to a syrupy sweet goody-two-shoes. At least here she gets to inspire the lust of men willing to cause catastrophe by neglecting their work.