Plot Summary

Knowing the plot of Macbeth inside out is non-negotiable at GCSE. This lesson provides a detailed act-by-act breakdown, identifies key turning points, and maps the dramatic structure so you can write confidently about any moment in the play.

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Dramatic Structure Overview

  Climax
  (Act 3: Banquo's murder / ghost)
     /\
    /  \
   /    \       Falling Action
  /      \      (Acts 4-5: Macbeth's tyranny,
 /        \      Lady Macbeth's madness)
/  Rising   \
/  Action    \
/ (Acts 1-2:  \          Resolution
/ Prophecy,    \         (Act 5: Macbeth killed,
/ Duncan's      \         Malcolm crowned)
/ murder)        \
/                 \
--Exposition-------\----->
(Act 1.1-1.3:
 Witches, battle,
 prophecy)

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Act 1: Temptation

Scene 1 — The Witches

The play opens with the three Witches meeting in a storm. They plan to meet Macbeth after the battle.

"Fair is foul, and foul is fair" (1.1)

This paradox establishes the theme of appearance vs reality and signals that the natural order is already disturbed.

Scene 2 — The Battle Report

A Captain reports to King Duncan that Macbeth has fought heroically, defeating the rebel Macdonwald and the Norwegian army. Duncan rewards Macbeth with the title Thane of Cawdor (whose previous holder was a traitor).

"brave Macbeth — well he deserves that name" (1.2)

Scene 3 — The Prophecy

The Witches meet Macbeth and Banquo on the heath. They make three prophecies:

Prophecy	To whom
"Thane of Glamis"	Macbeth
"Thane of Cawdor"	Macbeth
"king hereafter"	Macbeth
"lesser than Macbeth, and greater"	Banquo
"not so happy, yet much happier"	Banquo
"thou shalt get kings"	Banquo

When Ross arrives and announces Macbeth is Thane of Cawdor, the first prophecy has come true. Macbeth immediately starts thinking about murder:

"why do I yield to that suggestion / Whose horrid image doth unfix my hair" (1.3)

Examiner's tip: The fact that Macbeth immediately thinks of murder — before anyone suggests it — is crucial. It shows his ambition already existed; the Witches did not create it.

Scene 4 — Duncan Names Malcolm

Duncan names his son Malcolm as heir to the throne (Prince of Cumberland). Macbeth recognises this as an obstacle:

"Stars, hide your fires; / Let not light see my black and deep desires" (1.4)

Scene 5 — Lady Macbeth's Letter

Lady Macbeth reads Macbeth's letter about the prophecy. She fears he is "too full o' th' milk of human kindness" (1.5) to act. She calls on dark spirits:

"unsex me here, / And fill me from the crown to the toe top-full / Of direst cruelty" (1.5)

This is her "unsex me" soliloquy — she asks to be stripped of femininity and compassion so she can drive the murder plot.

Scene 6 — Duncan Arrives

Duncan arrives at Macbeth's castle and praises its pleasant atmosphere — dramatic irony, since he will be murdered there.

Scene 7 — "If it were done"

Macbeth debates whether to murder Duncan in his famous soliloquy:

"If it were done when 'tis done, then 'twere well / It were done quickly" (1.7)

He lists reasons NOT to kill Duncan: he is Duncan's kinsman, subject, and host; Duncan is a good king; Macbeth's only motivation is ambition. He decides against it. Lady Macbeth persuades him by questioning his manhood:

"When you durst do it, then you were a man" (1.7)

She reveals her plan: get Duncan's guards drunk, murder Duncan, frame the guards. Macbeth agrees.

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Act 2: The Murder

Scene 1 — "Is this a dagger?"

Macbeth sees a hallucinated dagger leading him to Duncan's chamber:

"Is this a dagger which I see before me, / The handle toward my hand?" (2.1)

This soliloquy shows his mental torment — the dagger could represent his guilty conscience or the supernatural pulling him towards evil.

Scene 2 — The Deed

Macbeth murders Duncan offstage. He returns to Lady Macbeth, deeply shaken, carrying the bloody daggers. He says he heard a voice cry:

"Macbeth does murder sleep" (2.2)

Lady Macbeth takes charge, returning the daggers and smearing blood on the sleeping guards. She dismisses his fear:

"A little water clears us of this deed" (2.2)

This line becomes deeply ironic — later, Lady Macbeth will be unable to wash imaginary blood from her hands.

Scene 3 — Discovery and the Porter

The Porter provides comic relief, pretending to be the gatekeeper of Hell. This scene serves multiple purposes:

Function	How
Comic relief	Breaks tension after the murder
Thematic reinforcement	The castle literally becomes a "hell gate"
Dramatic irony	The audience knows the horror the Porter does not
Foreshadowing	References to equivocation link to the Witches' deception

Macduff discovers Duncan's body. Macbeth kills the guards, claiming outrage. Duncan's sons flee: Malcolm to England, Donalbain to Ireland — which makes them look guilty.

Scene 4 — Unnatural Events

Ross and an Old Man describe unnatural disturbances: darkness at noon, an owl killing a falcon, Duncan's horses turning wild and eating each other. These signify the disruption of the Great Chain of Being.

Macbeth is named king.

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Act 3: The Tyrant Emerges

Scene 1 — Plotting Banquo's Murder

Macbeth fears Banquo because of the prophecy that Banquo's descendants will be kings. He hires murderers to kill Banquo and his son Fleance.