A six-year-old boy from London's East End is fascinated by the stories of an elderly neighbour, who tells him about the strange powers of the mythical unicorn. The lad sets out to find such a magical beast, only to encounter a single-horned goat. Certain he has found the creature he was looking for, he takes it home - and sets about trying to make wishes come true. Drama, with Jonathan Ashmore, Celia Johnson, Diana Dors and David Kossoff