This scene plays a very important piece of the play. This is when we see how cold hearted and evil Macbeth is, and also how this action that Macbeth performs will change the outcome of his life later on in this play. For this scene Macduff swears revenge on Macbeth and as we know this is why Macbeth dies in the play. In this scene Lady Macduff and Macduff's son are arguing on why Lady Macduff believes that her husband is a traitor and deserves the worse punishment. She believes that Macduff left them unprotected without caring of their wel ....