A small boy, bored with all his toys, suddenly notices a trapdoor in the ceiling that can be reached by climbing the ladder of his toy fire engine. Once up in the attic he spends a happy day absorbed in imaginary games with the inhabitants of the attic - mice, beetles and spiders. Then he goes out through the window that opens other windows in search of a special friend - who turns out to be a marvellously dopey tiger. But Mum says that they have no attic - she just can't have found the right ladder/