A museum owner named Mr. Belmont (Byron Foulger) takes an interest in Lurch's Krupnik harpsichord, so Morticia and Gomez plan to donate it to the museum. They don't stop till later to think how this might affect Lurch. Lurch is devastated. The family tries to interest him in other pastimes, but to no avail. Gomez and Fester finally decide they must build him a duplicate harpsichord. Once built, the family tell Lurch that they changed their minds and decided not to give the harpsichord away. Two delivery men arrive a day early, while Lurch is home alone, to take the harpsichord away. Lurch now feels betrayed, but lets the men take the harpsichord. It turns out Mr. Belmont was a crook and tried to sell the harpsichord to the museum. When the museum rea ...