An Inspector Calls" first produced in 1946 when society was undergoing sweeping transformations has recently enjoyed an enormously successful revival. While holding its audience with the gripping tension of a detective thriller it is also a philosophical play about social conscience & the crumbling of middle class values. " Time & the Conways" & "I Have Been Here Before" belong to Priestley's 'time'plays in which he explores the idea of precognition & pits fate against free will. " The Linden Tree" also challenges preconceived ideas of history when Professor Linden comes into conflict with his family about how life should be lived after the war."