The Danish king dies suddenly, his younger brother Claudius marries the queen, and becomes the king of Denmark.
Prince Hamlet, who is depressed by the death of his father and his mother's early remarriage, falls in love with Ophelia, the daughter of his servant chief, Polonias. Ophelia also loved Hamlet, but his father, Polonius, opposed the love of the two men who were in different positions.
Hamlet learned from the ghost of the Danish king that it was Claudius who killed it. And I decided to take revenge on him.
It was Claudius who killed me, so the present King.
Really! ? I will revenge him absolutely.
Hamlet swears revenge pretending to be mad. And Hamlet treats Ophelia coldly. Ophelia, who doesn't know it, is crying with deep sorrow.
Eventually, Hamlet gained certain evidence that the king had assassinated his father, but he accidentally stabbed Polonias, who was hiding and listening while talking to his mother, Queen, to the king.
And Ophelia is so mad that she is so sad that she eventually throws herself into the river and commits suicide.