After receiving a letter from Macbeth that informs her of the Witches' prophecies, Lady Macbeth is determined for Macbeth to become king.
1. She worries that Macbeth is too tame and hesitant to do it himself, so commits to mocking and tempting him until he gives in.
2. After Duncan's murder, she grows more anxious and blunt, but is kept out of most of her husband's actions and plots.
3. Ultimately, she is broken by grief and guilt and takes her own life.