blood.
Macbeth does not reveal his plan to kill Banquo and Fleance (Banquo's son) to Lady Macbeth.
what the hell ? ?
a book
Banquo
She fainted
Lady Macbeth gets them drunk, then frames them for the murder of Duncan.
Macbeth, yet guards were framed and Lady Macbeth was the plotter!
She causes it. He would never have murdered Duncan if she hadn't pushed him to it.
Duncan shows his affection for the Macbeths by giving them gifts. In particular he gives Lady M a jewel.
She doesn't play any part in the murder of King Duncan.
Lady Macbeth isn't anxious to have Duncan at Dunsinane. Dunsinane is the palatial residence where the Macbeths live after they are crowned King and Queen of the Scots. King Duncan is killed at the previous residence of the Macbeths, at Inverness. And the murder of the King is exactly why the Lady seeks, and then delights in, his presence in her home [Act 2 Scenes 5-7].
The Doctor and Gentlewoman watch Lady Macbeth sleepwalk. She incessantly rubs her hands together, trying to wash off imaginary spots of blood. The blood represents her guilt that she is unable to shake off.