After Macbeth expresses doubts, his wife viciously insults him and his masculinity.
While initially deeply reluctant to act against Duncan, Macbeth is eventually convinced to follow through with his wife's plan.
Servants in the Macbeth household.
Macbeth is talking to himself again. He hems and haws over the consequences he’ll face if he decides to commit murder. He knows that killing Duncan could mean bad news for him and just about everyone else in Scotland. When Lady Macbeth enters, he tells her he can’t go through with this sordid plan. But she’s got other ideas. Trying to psych her husband up for some regicide, she tells him he’s not much of a man if he can’t find the courage to kill the king. Then she hatches a plan: they’ll wait until Duncan’s asleep, get his servants drunk, kill the king in his bed, and blame it on the servants. Sounds good to Macbeth—he commits to the plan.