They want Mrs. Hardcastle's son Tony to marry their ward Constance, an heiress who is secretly plotting to runaway with the more dashing but not quite as well-off George Hastings.
And they are trying to get Mr. Hardcastle's daughter Kate hooked up with Charles Marlowe, a rich Londoner who also happens to be Hastings' best friend.
It's Marlowe who has the affinity for commoners: society women make him nervous and he feels more comfortable with lower-class types. So Kate, as the title promises, stoops to conquer him by pretending to be a serving girl.
And its budget seems to be much less. These actors are dressed in a distractingly motley fashion, as though they were encouraged to search their home closets for anything that looked vaguely 18th century. But the show still has a few pleasures.