Lady Macbeth suffers from bouts of sleepwalking. To a doctor who observes her symptoms, she unwittingly reveals her guilt as she pronounces that she cannot wash her hands clean of bloodstains. Macbeth is too preoccupied with battle preparations to pay much heed to her dreams and expresses anger when the doctor says he cannot cure her. Just as the English army led by Malcolm, Macduff, Siward approaches, Lady Macbeth’s cry of death is heard in the castle. When Macbeth hears of her death, he comments that she should have died at a future date and muses on the meaninglessness of life.