1 Sc. v. 60) which orders Macbeth to murder him in there own house. Scene vii demonstrates Lady Macbeth's ability to control her husband. She calls him a coward and compares him to a poor cat in a folks saying; "Like the poor cat i' the adage?"(Act.1 Sc. vii. 45). This is an example of Lady Macbeth loosing respect for her husband. The constant badgering of his wife changes his innocent character into a murderous figure that we learn more about in the next couple of acts.
In Act II.i Banquo comes to Macbeth because he is unable to sleep and he is having bad dreams. Macbeth ignores this but he does not forget about it. This scene should be regarded as the seed of paranoia that overcomes Macbeth about Banquo's knowledge of his crimes. This grows later in the play and this provides the roots for much of the plot development. The famous dagger soliloquy shows Macbeth's psychiatric state of health to be very rocky. It is clear that he does not hold a dagger, he talks about it as if it is there. This scene makes it clear that Macbeth's actions are beginning to take their psychological toll on him. In scene ii Macbeth's mental illness develops continuously, as his reports of hallucinations head from sights to sounds. He also fears that he shall never sleep again. Also Macbeth can not answer "Amen" to a .
single prey to god "Listening there fear I could not say 'Amen'"(Act II Sc.ii. 29). This shows that Macbeth is starting to sink to the level of the witches and his wife. In scene iii Macduff is introduced and could be classified as Macbeth's foil character. He is introduced as an elegant, intelligent, and wise nobleman who is the total opposite of Macbeth.
Act III is most commonly known as the denouement. Before Macbeth regarded the witches as something beyond his control "If chance will have me king, why, chance may crown me"(Act I Sc.iii?. 143-144) but know he treats them as something he can manipulate.