The protagonist of the tragedy, Macbeth, is presented as a brave man, a hero, but we understand his true nature. Shakespeare shows us his inner torment caused by the awareness of his own actions and his moral decadence; he is repeatedly assailed by doubts before killing Duncan and, even after the regicide, continues to commit crimes to maintain the throne.
The protagonist of the tragedy, Macbeth, is presented as a brave man, a hero, but we understand his true nature. Shakespeare shows us his inner torment caused by the awareness of his own actions and his moral decadence; he is repeatedly assailed by doubts before killing Duncan and, even after the regicide, continues to commit crimes to maintain the throne.