The document provides a summary of Act I of Shakespeare's play Macbeth. It describes the three witches prophesying that Macbeth will become king. It then details Macbeth's victory in battle for King Duncan and being named Thane of Cawdor, fulfilling part of the prophecy. Upon meeting the witches again, Macbeth and Lady Macbeth begin plotting to kill Duncan so Macbeth can be king, fulfilling the final prophecy. Lady Macbeth convinces Macbeth to go through with the assassination when Duncan visits their castle.