The Witches gather in a cavern to cast a spell in a bubbling cauldron.
Hecate, the goddess of Witchcraft, appears and congratulates the Witches before departing.
Macbeth enters and demands answers from the Witches.
They summon three apparitions:
First Apparition: An armed head warns Macbeth to beware of Macduff.
Second Apparition: A bloody child tells Macbeth no one born of a woman shall harm him.
Third Apparition: A crowned child holding a tree states he will not be defeated until Birnam Wood comes to Dunsinane.
Macbeth feels reassured but orders the murder of Macduff to ensure his own safety.
He then inquires about Banquo's descendants; the Witches say he should not ask, but he demands the answer.
A vision of eight kings appears, suggesting Banquo's offspring will rule.
Frustrated by the disappearing Witches, Macbeth vows to kill Macduff's family, marking a violent shift in his character as he embraces tyranny.
Lady Macduff is in her castle discussing Macduff's absence with the Thane of Ross.
She feels abandoned and disheartened, believing her husband has fled.
A messenger warns them to leave, but Lady Macduff refuses, believing they have done no harm.
Macbeth's murderers arrive and kill Lady Macduff and her son.
A poignant quote emerges: "I am, in this earthly world, where to do harm is often laudable; to do good sometimes accounted dangerous folly."
This highlights the tragic consequences of innocence and the evil of Macbeth's rule.
Macduff meets with Malcolm, Duncan's son, to discuss Scotland's suffering due to Macbeth's tyranny.
Malcolm tests Macduff by dishonestly claiming he possesses various vices, including lust and greed.
Macduff becomes distressed when Malcolm claims he would disrupt peace in Scotland, leading to Malcolm revealing he was only testing Macduff's loyalty.
They decide to invade Scotland with an army from England.
Ross arrives with the devastating news of the murders of Macduff's family, breaking Macduff emotionally.
Malcolm uses personification to describe Scotland's suffering, stating it "weeps, it bleeds, and each new day a gash is added to her wounds."
This emphasizes Macbeth's cruelty, solidifying his role as a tyrant as they prepare for retaliation.