This document provides an in-depth analysis of William Shakespeare's play Macbeth, focusing on the characters of Macbeth and Lady Macbeth. It examines their roles in the murder of King Duncan through quotes and scenes from the play, analyzing themes of ambition, guilt, and the supernatural. While Lady Macbeth initially drives Macbeth to commit the crime, evidence from the beginning of the play suggests Macbeth's own desires contributed to the murder.