Set in early 20th century England, the story revolves around the wealthy Birling family who are celebrating an engagement between their daughter Sheila and her fiancé Gerald. The festive atmosphere is interrupted when a mysterious inspector bursts into their home, announcing that a young woman named Eva Smith has committed suicide and that each of them has a role to play in her tragic story.
As the inspector interrogates the family members one by one, dark secrets and guilt come to light. Mr. Birling, an industrial magnate, is more concerned about his reputation than the lives he has impacted. Sheila, in a moment of reflection, begins to question her own coldness towards Eva's situation, while Gerald, the fiancé, also reveals a disturbing connection to the young woman. The mother, Sybil, clings to social conventions, trying to protect her status at all costs.
The inspector acts as a mirror that reflects their hypocrisies and the dehumanization they exert towards the less fortunate. As tension mounts, a moral debate about responsibility and empathy unfolds, leaving the family on the brink of emotional collapse. The film culminates in a poignant climax that forces each one to confront the consequences of their actions, revealing whether they can truly escape their past.