The crash of 1929 has ended the party for high-living New Yorkers Lily Brewster and her brother, Robert. But their recently deceased great-uncle Horatio has left them a Grace and Favor "Cottage"--really a great mansion--to live in. They move to the quiet Hudson River community, but when a corpse appears in their kitchen, they begin snooping to clear their names, unaware that they may be the killer's next targets.