Understanding the plot of An Inspector Calls is about much more than just remembering what happens and when. J.B. Priestley uses a highly deliberate, tense, and tightly wound structure to deliver a powerful message about social responsibility.

In this guide, you will learn how the events of the play unfold, how Priestley manipulates dramatic tension, and how the plot is engineered to challenge both the characters and the audience.

What you'll learn

• The chronological sequence of events across the play's three acts.
• How Priestley adapts structural models to construct a gripping moral mystery.
• How to trace the escalation of dramatic tension and analyze the play's shocking final twist.

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The Architectural Design: The "Well-Made Play"

Before diving into the chronological events, we need to understand the structural blueprint Priestley uses. An Inspector Calls is structured as a modern adaptation of a classic theatrical genre.

Priestley adopts the mechanics of the well-made play—the single room setting, the unfolding secrets, the ticking clock—but he turns the genre on its head. Instead of restoring the comfortable, capitalist social order at the end, Priestley shatters it to leave the audience with an urgent moral question.

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Act-by-Act Plot Breakdown

Act One: The Illusion of Order

The play opens in the dining room of the Birling family home in the industrial town of Brumley, North Midlands, in the spring of 1912.

• The Exposition: The wealthy Birling family is celebrating the engagement of Sheila Birling to Gerald Croft, the son of Mr. Birling’s rival competitor, Lord Croft. The atmosphere is self-congratulatory. Mr. Birling, a "heavy-looking, rather portentous man," delivers pompous speeches. He dismisses the threat of war as "silly little war scares," praises the Titanic as "unsinkable, absolutely unsinkable," and declares that "a man has to make his own way—has to look after himself."
• The Inciting Incident: A sharp ring of the doorbell interrupts Birling's individualistic speech. Inspector Goole arrives, investigating the suicide of a young working-class woman, Eva Smith, who died after drinking disinfectant.
• The First Link (Arthur Birling): The Inspector reveals that Birling sacked Eva two years prior from his factory for leading a strike for a minor wage increase ("twenty-two and six" shillings a week). Birling defends his decision as standard business practice.
• The Second Link (Sheila Birling): Sheila is shown a photograph of the girl. Distressed, she confesses that she used her social influence to get Eva fired from her next job at the high-end department store, Milwards, out of a fit of petty jealousy. Sheila feels deep, immediate remorse.
• The Cliffhanger: The Inspector mentions that the girl changed her name to Daisy Renton. Hearing this name, Gerald Croft flinches, revealing his guilt to Sheila before the Inspector even questions him.

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Act Two: The Complications Deconstruct the Family

The second act begins immediately after the first, maintaining continuous dramatic time to heighten the tension.

• The Third Link (Gerald Croft): Under interrogation, Gerald admits to having a summer affair with Daisy Renton after rescuing her from the predatory local alderman, Meggarty. He set her up in a friend's rooms but eventually ended the relationship. Sheila respects his partial honesty but returns her engagement ring.
• The Fourth Link (Sybil Birling): Mrs. Birling tries to intimidate the Inspector using her social status, but her cold exterior cracks. It is revealed that as the head of the Brumley Women’s Charity, she rejected Eva's plea for financial support only two weeks prior. Eva was pregnant and desperate.
• The Trap is Sprung: Mrs. Birling insists she did her duty and blames the father of the unborn child, asserting he should be dealt with "very severely" and made an example of.
• The Realization: As Mrs. Birling rants, Sheila frantically begs her mother to stop. The audience and the characters suddenly realize the truth: the father of the child is Mrs. Birling's own son, Eric. Eric enters the room as the act ends.

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Act Three: Climax, Hoax, and the Final Verdict

The final act brings the confrontation to its peak and leaves the characters (and the audience) morally divided.

• The Fifth Link (Eric Birling): Eric confesses to meeting Eva at a music hall, forcing his way into her lodgings, and getting her pregnant. He stole £50 from his father's office to support her, which she refused to accept once she realized it was stolen.
• The Climax: The family is in ruins, trading bitter accusations. The Inspector cuts across the noise to deliver his final, apocalyptic warning to the family and the audience:

"We don't live alone. We are members of one body. We are responsible for each other. And I tell you that the time will soon come when, if men will not learn that lesson, then they will be taught it in fire and blood and anguish."

• The Falling Action (The Hoax): The Inspector departs. Gerald returns with news from a local police officer: there is no "Inspector Goole" on the force. A telephone call to the local infirmary confirms that no suicide has been reported that day.
• The Generational Divide: Mr. and Mrs. Birling, along with Gerald, are overjoyed, dismissing the evening as a clever hoax. However, Sheila and Eric remain deeply shaken. They realize that even if the Inspector wasn't real, their immoral actions still occurred.
• The Twist Resolution: The phone rings. Mr. Birling answers. He informs the family that a young girl has just died on her way to the infirmary after swallowing disinfectant, and a police inspector is on his way to question them. The curtain falls on a stage of stunned silence.

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Deconstructing Structural Tension

To score highly on AO2 (Analysis of Language, Form, and Structure), you must be able to explain how Priestley constructs his scenes to maximize tension. Let’s walk through how to analyze a critical structural turning point.

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