three witches foretell that knight macbeth will be promoted to "thane cawdor" and then king of scotland.
king Duncan announces that Macbeth is promoted to "thane of cawdor "knowing that the prophecy was true,Macbeth considered to kill Duncan so he can be king.
lady macbeth and macbeth teamed up to kill king Duncan they also decided to kill the guards. macbeth was crowned king but he and lady macbeth were paranoid after killing Duncan
howeve macbeth starts to fear the third prediction that Banquo's descendants will also be kings. Macbeth therefore decides to kill Banquo and his son, but the plan goes wrong - Banquo is killed but his son escapes
Macbeth then thinks he is going mad because he sees Banquo's ghost and receives more predictions from the witches. He starts to become ruthless and kills the family of Macduff, an important lord
Macbeth still thinks he is safe but one by one the witches' prophecies come true, Lady Macbeth cannot stop thinking about Duncan, becomes deranged and dies. A large army marches on Macbeth's castle and Macbeth is killed by Macduff.