Macbeth is a tragedy. It follows the classic elements of a tragic plot, including the protagonist's tragic flaw, the reversal of fortune, and the catharsis or emotional release at the end.

The tragic flaw of Macbeth is his ambition, which leads him to commit murder and ultimately leads to his downfall. The reversal of fortune occurs when Macbeth becomes king but is plagued by guilt and paranoia, leading to his eventual downfall. The catharsis occurs when Macbeth is killed and order is restored to the kingdom.

Overall, Macbeth is a classic example of a tragic plot, with a flawed protagonist, a reversal of fortune, and a cathartic ending.