Castle Walking is a full-length anime film released by Studio Ghibli in 2004. Created by Japanese director Hayao Miyazaki based on the fairytale novel of the same name by the English writer Diana Wynn Jones. The wicked witch imprisoned 18-year-old Sophie in the body of an old woman. The girl-grandmother runs out of the city wherever they look and meets an amazing house on legs, where she meets the powerful wizard Howl and the demon Calcifer. Calcifer must serve Howl under a contract, the terms of which he cannot divulge. The girl and the demon decide to help each other get rid of the evil spell.