With a blizzard raging outside and telephones dead inside, a group of assorted eccentric individuals find themselves trapped in an English country mansion turned hotel. One of the guests is murdered, and the others including the hosts become suspects, with the audience kept in the dark as to the killer’s identity until the very end. This classic by the mistress of the whodunit has delighted London audiences for over sixty years, the longest continuously-running production in world theater history.