In 1912 pompous industrialist Arthur Birling, who has hopes of a knighthood, his superior wife Sybil and young son Eric are celebrating the engagement of daughter Sheila to eligible Gerald Croft when they are visited by blunt Inspector Goole. He tells them of the suicide of a young woman named Eva Smith and though they all claim not to have known her the inspector demonstrates that each in their own way contributed to her downfall...