As the scene opens, the King and Queen ask Guildenstern and Rosencrantz to attempt to find out what is wrong with Hamlet. Polonius has his theory, i.e. that Hamlet is melancholy because of his unrequited love for Ophelia (Polonius's daughter.) He reads a love poem that Hamlet has written to Ophelia, which seems to confirm his opinion. In order to find proof, he plans to send Ophelia to speak with him one day when he is walking through the palace. Polonius and Claudius will hide behind a curtan and listen to what happens. This should, Polonius reasons, prove once and for all that he is mad for Ophelia's love.