A young woman named Sophie is cursed by the Witch of the Waste, turns into an old woman, and is unable to tell anyone of her plight. Unable to continue her job at her mother's hat shop, she goes to the ambulatory castle of the notorious wizard Howl and insinuates herself into his household. Sophie befriends Calcifer, the fire demon who powers the castle and who is bound to Howl by a contract, the terms of which Calcifer cannot reveal. They promise to help each other with their problems. Like Calcifer, Howl can also see through the Witch's spell, and he and Sophie fall in love. Sophie helps Howl confront his former teacher, and the Witch of the Waste. (from IMDB)
I read the children's novel this film was based on before I saw the movie, BIG mistake. The movie diverged in a big way from the book with the war that took place in the movie; I felt the movie was too preachy in its anti-war message. The animation was great, but my thinking kept dragging me back to the book so I have to say that this movie was average. If you haven't read the book, you may come to think of this as a great movie.