In the play Macbeth, power is a central theme and is depicted as something that corrupts individuals and causes them to act immorally in their pursuit of it. The main character, Macbeth, is a Scottish nobleman who becomes consumed by his desire for power and ultimately becomes a tyrant.
At the beginning of the play, Macbeth is a brave and loyal soldier who is respected by those around him. However, after being told by a group of witches that he will one day become the thane of Cawdor and eventually the king of Scotland, Macbeth becomes fixated on achieving these titles. He becomes convinced that the only way to do so is to kill the current king, Duncan, and take the throne for himself.
As Macbeth's thirst for power grows, he becomes more and more ruthless. He murders Duncan in his sleep, and then goes on to kill anyone who stands in his way or threatens his power. He becomes paranoid and cruel, and ultimately loses the respect and loyalty of those around him.