Reggie and Midge are reluctant proprietors of the failing Chortlesby Manor Hotel. The possibility of financial help comes from Midges old classmate who is arranging ''mystery tours'' of England for American visitors and wants to use Chortlesby Manor as a locale for her staged murders. But the mystery-tour project is soon headed for disaster. Dissension, complaints, flaring tempers, and a snowstorm are soon upstaged when a real murder takes front and center. As a killer stalks the group of amateur sleuths on holiday, solving murders is no longer fun and games. Too many guests are checking out early and not settling their bills - or leaving enough useful clues.