The Mousetrap: by Agatha Christie

The scene is set when a group of people gathered in a country house cut off by the snow discover, to their horror, that there is a murderer in their midst. Who can it be? One by one the suspicious characters reveal their sordid pasts until at the last, nerve-shredding moment the identity and the motive are finally revealed. The Mousetrap is the longest-running play in the history of London’s West End.