Why does Hamlet, the young Prince of Denmark, look so sad?

Why does he often say strange things? His family and friends are worried about him. Perhaps he is mad! But Hamlet thinks that he has discovered a terrible secret about a recent crime in his family.

Now he has no time for Ophelia, the sweet girl who loves him. or his friends, who were at school with him. He sits alone, and thinks, and plans. What will he decide to do? Will he ever be happy again? This famous play by William Shakespeare, written in about 1600, is one of the finest in the English language.