Joe is a young child that lives with his mommy, Joanna, in working-class London. The two live above the tailor shop of Mr. Kandinsky, that suches as to tell Joe stories. When Kandinsky notifies Joe that a unicorn can provide wishes, the enthusiastic boy ends up purchasing an infant goat with one small horn, believing it to be a genuine unicorn. Unflinching by his harsh surroundings, Joe sets about to confirm that dreams can come to life.