A banquet. In attendance: MACBETH, LADY MACBETH, ROSS, LENNOX, Lords, and Attendants. In this scene, MACBETH’s conscience plagues him and he embarrasses himself in front of the assembled company when he begins conversing with the ghost of BANQUO, who he has had murdered. LADY MACBETH is appalled by his behaviour and fears that it might betray their secret.