William Shakespeare's "Macbeth" is a tragedy that tells the story of a Scottish lord named Macbeth. After receiving a prophecy from witches, Macbeth aspires to power and kills King Duncan to become king himself. However, his reign turns into a series of bloody and tragic events. The play explores themes of ambition, power, and moral degradation, which ultimately define the tragic fate of Macbeth and his wife, Lady Macbeth.