Has Lady Macbeth really managed to get rid of her conscience completely or are there still remnants of it in her? Is she completely evil of just fooling herself? Watch as she follows the pattern of decline, despair, and death.
When we first meet Lady Macbeth she is in the Inverness reading a letter from Macbeth (I.V). While reading the letter she finds that three witches have told Macbeth that he shall be the Thane of Cawdor but most importantly that he will be king. Upon hearing this news Lady Macbeth immediately begins to scheme and plot. She is determined that Macbeth will become king as we can see when she says "Glamis thou art and Cawdor; and shalt be what thou art promised" (I.V12-13). She wants Macbeth to be king but worries that he is too kind and that without the evil he needs to join with his ambition, he will not be able to find the quickest route to the throne. To avoid this problem Lady Macbeth decides to pour the spirits of her own evilness into Macbeth's ears and drive away the fear that will hold him back from getting the crown. Here we are starting to get an insight into her character and we see that not only has she knowledge of her husband's personality, she is a loving wife too. She is also prepared to persuade her husband to go against his better nature and become ruthlessly evil. She also appears to be a woman without any morals and is thoroughly determined that the witch's prophecies come true.
When Lady Macbeth hears that Duncan, the king, will be coming to stay at the castle her ambition takes a sudden turn and her wickedness grows. She decides that he shouldn"t leave the castle alive, "The Raven himself is hoarse that croaks the fatal entrance of Duncan under my battlements" (I.V 36-38). As time goes on one can see Lady Macbeth begins to invite evil into her body. She wants nothing to stand in her way of dark and evil deeds, and wants no remnants of her conscience left to stop her as she prepares to murder the king.