Driven by a distinct lack of clientele, they target an affluent mansion hosting a high society dinner party, whereupon they orchestrate a calculated release of various vermin, including mice, moths, and ants, with deliberate malice.
Their machinations, laced with gleeful amorality, result in their inevitable hiring to rectify the very chaos they have orchestrated, all while discreetly masquerading as guests so as not to disrupt the soirée.
Things go according to plan until a sequence of events precipitated by Larry and Curly's ill-conceived scheme to conceal mice-seeking cats within an upright piano unravels the facade of order during a recital of Johann Strauss II's "Blue Danube Waltz."
The ensuing chaos, exacerbated by the intrusion of a mouse into the piano, incites a cacophony of feline agitation, culminating in the destruction of the instrument and the revelation of the Stooges' ruse.
However, in a surprising turn of events, the social decorum of the gathering is preserved as the hostess and her guests interpret the Stooges' antics as entertainment, thereby averting potential embarrassment.