Three Witches meet Macbeth and Banquo and make predictions about each of their futures, one of which is that Macbeth will be the new king of Cawdor.
Lady Macbeth plans for Macbeth to be king. Lady Macbeth calls on spirits to fill her with cruelty so she can be the strength Macbeth needs to kill the king. She assures Macbeth that she will take care of King duncan's visit.
Macbeth returns to Lady Macbeth in their bedroom, bloody daggers in hand, after he has killed the king. He is horrified at his own actions. Lady Macbeth returns the daggers to the murder scene and blames it on the drunk servants. Macbeth becomes King.
Macbeth murders Banquo. He starts seeing Banquo's ghost
Macbeth has Macduff's family killed. Macduff Malcolm prepares for war.
Lady Macbeth kills herself. Macduff kills Macbeth. Malcolm becomes the rightful king