How Macbeth would perform Act IV Scene I

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…Macduff. He will pace around the front stage whilst Lennox walks towards the back of the stage to talk with the messenger. Macbeth should look flustered and angry, he should look as if he has lost all sanity and means of rational thought, showing the audience that in this one scene Macbeth has gone from a murderer to a madman. The spotlight will be put out permanently. There is no way back for Macbeth now.