Based on the classic stage play by J.B. Priestly, An Inspector Calls stars the incomparable Alastair Sim as the inspector of the title. The Birling family are rich, pampered and complacent. It is 1912, and the shadow of the impending war has yet to fall across their lives. As they sit down to dinner one night, celebrating the engagement of the eldest child, Sheila, to prosperous business man Gerald, a knock at the door announces the arrival of a visitor who will change their lives forever.

The visitor is a police inspector, who announces he is investigating the suspicious death of a young woman. As he questions each member of the family, years of secrets and lies are revealed, and the family soon find themselves wondering who the mysterious inspector really is – and how he knows so much about them.