 Based on Shakespeare s play: As Macbeth and Banquo return victorious from fighting a battle, they are met by three witches who make a series of tantalizing predictions. One of the predictions says that Macbeth will become King of Scotland. As Macbeth agonizes between loyalty and opportunity, his ruthless wife spurs him on to give up his reservations, causing Macbeth to resort to treachery and murder in order to fulfill his ambitions.