An Inspector Calls: Plot and Structure

An Inspector Calls is a three-act play by J.B. Priestley, first performed in 1945 but set in the spring of 1912. All the action takes place in one room: the dining room of the Birlings' prosperous house in the fictional industrial city of Brumley.

The Birling family are celebrating the engagement of their daughter Sheila to Gerald Croft, the son of a rival business owner. Arthur Birling (the father, a wealthy factory owner) is in a confident, self-satisfied mood. His wife Sybil Birling and son Eric complete the family. The evening is comfortable, private, and pleased with itself.

Into this closed, celebratory world steps an outsider: Inspector Goole, who announces that a young working-class woman, Eva Smith, has died in the infirmary after swallowing disinfectant. From that entrance, the family are held in the room and questioned until the truth about their part in her death is dragged out.

The single setting matters: there is nowhere to hide. Priestley traps the Birlings on stage so the audience watches every reaction as their guilt is exposed.

Act One opens with Birling holding court at the dinner table. He makes a series of confident predictions that Priestley's 1945 audience knew to be catastrophically wrong.

Birling claims	The audience knows
The Titanic is "unsinkable"	It sank on its maiden voyage in April 1912
There will be no war	Two world wars followed (1914–18, 1939–45)
A man should "look after himself and his own"	The play argues the opposite

This is dramatic irony: the audience knows something the character does not. It makes Birling look foolish and teaches us to distrust everything he says.

Just as Birling lectures Gerald and Eric that "a man has to mind his own business and look after himself and his own", the doorbell rings. The Inspector arrives, and the private celebration is broken open. He reveals Eva Smith's death and begins his questions with Birling, who admits he sacked Eva from his factory in 1910 for asking for a small pay rise. Birling feels no responsibility at all.

The Inspector reveals the story of Eva Smith's decline one character at a time, like links in a chain. Each person passed her further down until she had nowhere left to go. Knowing this sequence is essential for the exam.

Order	Character	What they did to Eva Smith
1	Arthur Birling	Sacked her from his factory for leading a request for higher wages
2	Sheila Birling	Had her dismissed from Milwards, a shop, out of jealousy and temper
3	Gerald Croft	Kept her as his mistress, then ended the affair, leaving her alone
4	Sybil Birling	Refused her charity when Eva, pregnant, came to her committee for help
5	Eric Birling	Fathered her child; took money (some of it stolen) to her

The Inspector's method is deliberate: he shows the girl only one photograph at a time and lets each character condemn themselves before moving on. The cumulative effect is that the whole family, across two generations and both sexes, shares the responsibility for one destroyed life.

Learn this chain in order. Almost any essay on the play can be structured around it, because it links every character to the central theme of responsibility.

Act Two moves the questioning to Gerald and then Mrs Birling. Gerald confesses to an affair with Eva (who was calling herself Daisy Renton) the previous summer; Sheila's respect for his honesty is mixed with her hurt, and she hands back the engagement ring. Mrs Birling, chair of a women's charity, admits she used her influence to deny the pregnant girl help, insisting the father of the child was the one to blame.

The trap springs when Mrs Birling, not realising who she is condemning, demands the young father be made "an example" and forced to confess publicly. Moments later it emerges that the father is her own son, Eric.

Act Three centres on Eric, who admits the relationship, the pregnancy, and that he stole money from his father's office to give to Eva. By now the younger generation (Sheila and Eric) accept their guilt and are changed by the evening. The older Birlings and Gerald resist. Before leaving, the Inspector delivers his famous warning about "fire and blood and anguish" if people do not learn they are responsible for one another.

The final movement of the play is one of the most famous endings in modern drama, and the reason its structure is so often examined.

After the Inspector leaves, the family begin to unpick the evening:

1. Gerald returns having learned from a police officer that there is no Inspector Goole on the force.
2. They telephone the infirmary and are told no girl has died there recently.
3. The older Birlings and Gerald conclude it was a hoax and their guilt evaporates. They congratulate themselves.

Then the telephone rings. Birling answers, and the news is chilling: a girl has just died on her way to the infirmary after swallowing disinfectant, and a police inspector is on his way to ask some questions.

This is cyclical structure: the play ends where it began, poised to repeat. The twist punishes the older Birlings, who thought they had escaped, and rewards the audience's sense that the lesson has not been learned. It also raises the question of who or what the Inspector really was: a real policeman, a ghost (his name suggests "ghoul"), a figure of conscience, or Priestley's own voice.

Priestley uses the shape of the play as a tool to push his message about social responsibility. Several structural choices work together.

• The three acts run continuously in real time and one location. This is close to the classical unities and makes the pressure feel relentless and inescapable.
• The engagement celebration frames the arrival of the Inspector so that private comfort is interrupted by a public duty the family would rather ignore.
• The reveal-by-reveal chain keeps the audience in suspense and makes each new confession land harder than the last.
• The generational split widens as the play goes on: Sheila and Eric change, their parents do not, dramatising Priestley's hope that the young can build a fairer society.

The play sits between two forms. It works as a well-made play (a tightly plotted mystery with a secret and a twist) and as a morality play (a drama designed to teach a lesson, with the Inspector as the voice of conscience). Recognising both lets you write about how form serves message.

For AO2 marks, link a structural point to its effect and to Priestley's purpose. "The cyclical ending" is a label; "the cyclical ending traps the unrepentant Birlings in a loop, warning the audience that ignoring responsibility guarantees a reckoning" is analysis.

1. Retelling the plot instead of analysing it

The examiner knows what happens. Marks come from explaining why Priestley shaped events as he did and what effect this has on the audience. Frame plot points as evidence for an argument, not as a summary.

2. Getting the chain of events out of order

Sheila's part comes before Gerald's affair in the telling, and Mrs Birling condemns Eric without knowing it is him. Muddling the sequence weakens your grasp of the tightening structure. Learn the five links and their order.

3. Missing the dramatic irony in Act One

Birling's speeches about the Titanic and no war are not just background. They are Priestley setting up the audience to reject Birling's every value from the outset. Name the technique (dramatic irony) and explain its purpose.

4. Treating the ending as a simple "gotcha"

The cyclical final phone call is not only a clever twist. It carries meaning: those who refuse to learn are condemned to face the reckoning again. Connect the structure to the theme of responsibility.

5. Forgetting it is a play, not a novel

Write about it as drama. Use terms like stage directions, entrances, dramatic tension, and audience, not "the reader" and "chapters". Examiners reward candidates who show awareness of the theatrical form (AO2).