Hamlet is a story of betrayal, madness, and revenge. Prince Hamlet is driven mad by the ghost of his father, who tells Hamlet that his uncle Claudius murdered him to become king and marry Hamlet's mother, Gertrude. Hamlet vows to avenge his father's death, sinking into madness and paranoia, which leads him to kill Polonius and drive Ophelia to suicide. In the end, Hamlet kills Claudius and dies in a duel with Laertes, arranged by Claudius to kill Hamlet.