The Picture of Dorian Gray + app + e-zone

Artist Basil Hallward sees Dorian Gray at a party and suddenly feels that something bad is going to happen. But then the young and handsome Dorian becomes his friend and Basil paints the most wonderful picture of him. What does Dorian wish for when he sees his picture? And why does Dorian then hide his picture for no one to see? Recording in British English.