Arthur Birling, a prosperous manufacturer, is holding a family dinner party to celebrate the engagement of his daughter. Into this cosy scene intrudes the harsh figure of a police inspector investigating the death of a young working-class woman.
Under interrogation, it emerges that every member of the family turns out to have a shameful secret which directly links them to her untimely death. This one event will change all of their lives, irrecoverably, forever.