Act 2 notes

• Macbeth is not in doubt. Macbeth had made up his mind and will please his wife. He will kill Duncan. It is no longer a matter of making up his mind. It never really was. He was pressured into having to make the decision of killing Duncan by Lady Macbeth
• He goes back to Macbeth now with a troubled conscience 
• Lady Macbeth accuses him of being a coward and plans on blaming the guards for the murder of Duncan. 
• A knocking at their door scares Macbeth but simply startles Lady Macbeth
•   Porter opens to Macduff and Lennox 
• Macduff finds the dead king and alarms everyone
• Macbeth killed the guards who were blamed for the murder of Duncan
• Duncan's two sons flee and so suspects of ordering their father's death
• Macbeth has gone to Scone to be crowned