A theatre company came to the castle and asked to perform a play. Hamlet allowed them but they had to perform his play.
Hamlet told them to perform a play where an amazing king is murdered and replaced by the murderer, who also steals his wife or a story of the recent events. Hamlet wants to see how Claudius reacts.
There was an all loving and heroic King named Fred who had a beautiful wife named Eleanor and they had a son named Jeff as a family they ruled well over the country of Denmark.
Let's move on!
While King Fred was sleeping in his orchard when his evil brother Henry killed him by pouring poison in his ear.
Henry made up a story about the King's death. he spread the word that while sleeping in his orchard a snake bit the King and pretended to mourn.
Henry quickly married the dead King's wife Gertrude and stole the his brother's wife and throne leaving poor Jeff the only mourner. At this point Cladius stops the play in fright of people knowing it was him.