The three witches meet Macbeth and Banquo. They tell Macbeth that he will be Thane of Cawdor and then king.
I am the ghost of Banquo
Lady Macbeth forced Macbeth to kill King Duncan so Macbeth would become king. Macduff and Lennox find King Duncans body. Lady Macbeth wipes the blood on the guards. The guards are now suspects for the murder but Macbeth murders them. King Duncans sons flee to England because they think they will be blamed for the murder.
Banquo starts to think that Macbeth killed King Duncan, Macbeth becomes very nervous. Macbeth finds some people to kill Banquo. Banquo is murdered. However Fleance escapes as Macbeth wants to kill him too.
Macbeth, Lady Macbeth, Lenox and Ross attend a banquet however the ghost of Banquo appears. Only Macbeth can see it. Macbeth becomes very agitated as Lady Macbeth tries to hide the truth. Macduff did not attend as he is looking for help as Macduff becomes very suspicious about Macbeth.
This is normal for Macbeth
Macbeth is very confident because of the witches prophecy. They said no one could defeat him unless the trees from Birnman wood travel to Dunsinade. The trees managed to move themselves as Duncan and Macduffs army grabbed the branches to hind themselves. Macbeth starts off as a overconfident King thinking no one was gonna hurt him. Unfortunately this led to his death.
Lady Macbeth goes crazy with grief, but no doctors can help her and she commits suicide. Scottish Lords agree to help Macduff and Malcom overcome Macbeth. Macbeth still believes that he cannot be killed by man. Macduff was born unnaturally by a c-section, Macduff kills Macbeth and Malcom becomes King of Scotland.