Macbeth and lady Macbeth are discussing there plan to slay the king when Macbeth gives in to his dark side and gets manipulated by his wife
Macbeth and his Lady were making a plan to kill Duncan so he can be king
what is this that i see a floating dagger why does it haunt me to bend its will
Lady Macbeth gets the guards drunk so Macbeth can get into the room so he can do his task. But Macbeth has other plans and images a floating dagger in front of him for him to grab it so he can kill Duncan.
Macbeth gets over his hallucinations and finally kills the king to become the new king of the land. But in doing this act he gets a sense of remorse because he killed the king but he feels good at the same time because he has power to do whatever.