Make Shakespeare easier with this student edition featuring Verse by Verse summary and glossary. Macbeth is a play of contradiction and ambition. Driven to becoming King, Macbeth will kill all and any that get in his way. He puts his faith in the words and prophesies of three witches, after their first one (that he will become Thane of Cawdor) comes through. Macbeth's wife, Lady Macbeth, is instrumental is Macbeth's ambition, egging him on when he fears he has gone to far, and scheming of greatness.