At the English countryside home of Henry and Clarissa Hailsham-Brown, Clarissa, the wife of a foriegn Office diplomat, discovers a body in the drawing room. With her husband scheduled to arrive at any moment with an important foreign politician in tow, Clarissa has to create an intricate web of alibis and invention to save her family. When her lies lead to new suprises, the audience is left to untangle the capivating puzzle of “who did it.”