Duncan, Malcolm, Donalbain and Banquo, Lennox, Macduff, Ross, Angus, and attendants enter the scene stand before Macbeth's castle. Duncan and Banquo discuss how pleasant and inviting Macbeth's castle appears to them. Lady Macbeth greets them. Duncan says how they had tried to catch up with him but his great love of his lady no doubt helped spur his horses on, fast ahead of the royal entourage. She is painfully obsequious in making them.....