After the death of the King of Denmark - Hamlet's father - his brother Claudius ascends the throne, who takes his widow Gertrude as his wife. Hamlet meets the ghost of his father and learns that he was killed by Claudius.
When the King of Denmark suddenly dies. his son, Crown Prince Hamlet, returns home to find that his Uncle Claudius has usurped the throne and married his sister-in-law, Hamlet's recently-widowed mother. One night Hamlet is visited by his father's ghost, who commands him to avenge his murder at Claudius' hands.