With their fortunes dwindling, Reggie and his wife, Midge, have turned the family mansion into an English country inn. When Midge gets a call from an old classmate who arranges “mystery tours” for visiting Americans, she happily agrees to host one of these staged-murder events.
But the tour seems to be a disaster from the get-go, with lots of arguing and complaining among those involved. Then, after a massive snowstorm, a real murder takes place—and it’s up to the amateur sleuths to solve the case before the killer checks them out permanently.