Macbeth I

We enter the scene with witches, and Banquo and Macbeth, two noblemen of Scotland are sidetracked from a war and get their fortunes told. Macbeth is told he will become king. Banquo is told his sons with be kings. They wonder between themselves, "can the devil speak true?" but later they are brought back to the important present, where the king deeds them very important men.
But with a letter from Macbeth in hand, his wife conjures up a mortal plan to kill the king, and make fate come faster. And.."the king comes here to-night" cries a messenger. Lady Macbeth goes crazy with delight and mischief, and when Macbeth comes home convinces him that that night shall be the death of King Duncan, and relates her plan to him. The king has his doubts, and sings a long speech about it, but his wife convinces him that they cannot fail. CANNOT. "Screw your courage to the sticking place and we'll not fail."
So they prepare for the night, to kill the man who loves old Macbeth like a son. But what dos he know of his wife???