Macbeth Act 3

• Banquo thinks that the prophecy about his children sitting on the throne will come true since Macbeth's did
• Macbeth wants to discuss disappearance of Malcolm and Donalbain, believes they are plotting against his crown
• Macbeth fears Banquo: sons might overthrow his family
• Macbeth hires two murderers to kill Banquo
• Kill Banquo, Fleance flees to avenge his death
• As Macbeth and Lady M are feasting, murderers come and share the news of his death but Macbeth is angry "the worm that's fled/ Hath nature that in time will venom breed"
• Macbeth goes to sit at head of the royal table and sees Banquo's ghost is sitting in his chair. However, no one else sees the ghost
• Lady Macbeth says to excuse her husband he sometimes has visions so they should just ignore his behavior but then urges Macbeth to snap out of it and questions his manhood 
• The ghost disappears and he tells the company "I have a strange infirmity which is nothing/ To those that know me"
• Ghost reappears
• Macbeth "I am in blood/ Stepped in so far that, should I wade no more,/ Returning were as tedious as go o'er"
• Lady Macbeth says to go to sleep
• Witches meet with Hecate the goddess of witchcraft
• Hecate is angry at them for meddling in business of Macbeth without her consent and says she will take over as supervisor of the mischief and when Macbeth comes the next day they will summon visions and spirits whose messages will fill him with a false sense of security and make him confused
• Fleance is blamed for Banquo's murder since he escaped
• Both men suspect Macbeth who they call a "tyrant" for the murders of Duncan and Banquo