This is the story of a boy and his Grandma. An award-wining architect, Grandma promises to build the boy a special house on a hill over the horizon, over a city and beyond the sea. But Grandma is getting old – too old to make houses. And, one day, she is gone. Without Grandma, the house is empty. It’s just rooms. But the boy has an idea – it requires a lot of work but the result is totally magical.