Ex-vaudeville performer Trixie makes a come-back, and threatens to thwart the ambitions of her song-writing step-children, Bob and Judy.

Re-enactment of how the 726-carat Jonker diamond was discovered in South Africa in 1905 by the family of Jacobus Jonker; how it was sold to Harry Winston; and how it was cut by Lazarre Kaplan.

The Stooges are running the local drugstore and mix up a potion that a desperate businessman decides to sell as scotch. The Stooges impersonate Scotsmen at a party to fool the prospective buyer. Their usual antics disrupt the party, ending when a barrel of their "scotch" explodes and floods the whole house.

Schlock-movie producer J. Pierpont Ginsburg, after declaring, in a Yiddish accent, that "talking pictures are in their infantry," decides to put all of his savings into a big-budgeted musical, starring the sensation of Paris (with a bad French accent), Adore Renee, and a swishy leading man, Reginald Whitlock. Meanwhile, his daughter, Judy Ginsburg, gets involved in a romance with Ginsburg's Gentile lawyer, John Applegate. His efforts aren't helped any by the projectionist who mixes up the sound-disc reels, with the images not matching the dialogue and sound effects, during a showing for prospective film buyers and exhibitors.