They plan to use the grooms' daggers and smear blood all over their hands, faces and clothes.
Lady Macbeth wants to use their daggers to stab Duncan and then smear them with Duncan's blood. When Macbeth fails to do this, she does it herself.
Lady Macbeth planned to blame the murder on the grooms of Duncan's chamber. This frame-up was successful, at least at first.
Macbeth, yet guards were framed and Lady Macbeth was the plotter!
Lady Macbeth gets them drunk, then frames them for the murder of Duncan.
She fainted
Macbeth [c. 1014-August 15, 1057] and his Lady [b. c. 1015] planned to blame the two royal guards for the untimely death of King Duncan I [d. August 14, 1040] of Scotland. Lady Macbeth was supposed to serve the guards drugged drinks, to keep them from protecting their sovereign. Macbeth was supposed to kill the sleeping, unarmed King and then the passed out, defenseless guards. The bloodied murder weapons were supposed to be left at the crime scene with the bloodied corpses. The crime scene was supposed to tell a tale of a king killed by his drunken guards and avenged by his outraged host. And that was what happened and how the royal guest chamber was made to look, in Act 2 Scene 2 of the Shakespearean play.
she gets the guards drunk so that they pass out allowing Macbeth to kill duncan.
Lady Macbeth's reaction to Macbeth's confession that he had killed the grooms is one of shock and concern. She realizes that their plan to frame the grooms for King Duncan's murder has been disrupted and that their actions are beginning to spiral out of control. Lady Macbeth tries to maintain a sense of calm and composure while internally grappling with the consequences of their actions.
Lady Macbeth made the plan. The grooms who were to be guarding the king were to be made so drunk that they would not wake. Macbeth was to go into Duncan's rooms, steal the guards' daggers, kill Duncan with them, wipe the blood on the grooms so they would look guilty and leave the daggers there, and return to Lady Macbeth after which they were to return to bed.
Duncan's grooms.
She doesn't play any part in the murder of King Duncan.
Macbeth kills the grooms so they cannot tell the others the truth.