Macbeth, Lady Macbeth, Lennox, Ross, and other lords attend a banquet. The ghost of Banquo presents itself to Macbeth. Macbeth begins to rant and rave, making the other guests uneasy. Lady Macbeth tries to cover up the situation by saying Macbeth is prone to fits. By the end of this Act, we learn that Macduff has not attended the banquet because he has gone to England, looking for aid because he is suspicious of Macbeth.