Macbeth is a Shakespearian tragedy about Macbeth, a nobleman and renowned warrior. After witches inform him that he will be king, he travels with his companion Banquo to King Duncan's castle. Macbeth's wife, Lady Macbeth, convinces him to kill Duncan and he obeys. After killing Banquo and others, Banquo's ghost returns to the castle, haunting Macbeth. Macbeth receives a tragic prophesy from the witches, Lady Macbeth kills herself out of guilt and King Duncan's son, Prince Malcom, invades the kingdom and kills Macbeth.
Macbeth appears with his doctor in tow, claiming he cannot die because no man born of woman can kill him and he cannot lose because the Birnam Wood cannot physically move. He insists on wearing his armor hours before the battle and raves madly at his servants when they announce the arrival of 10,000 English troops. When the doctor announces that Lady Macbeth is struck with delusions, Macbeth tells him to cure her of them.