Reggie and Midge, reluctant managers of an English country inn of no particular distinction, find that even this transformation of what was the family's more or less stately home will not solve their financial problems. The possibility of succor comes instead in a transatlantic phone call from Midge's old classmate, Victoria, who is arranging "mystery tours" of the English countryside for American visitors, and wants to use Chortlesby Manor as one of the locales of her staged murders.
From the beginning, the mystery tour project is heading for disaster. Dissension, complaints, shows of temperament abound. These are upstaged, however, by a snowstorm of paralyzing amplitude, which in turn must retire from the spotlight when a real murder takes front and center.