He's a genie in a bottle, you'd better rub him the right way or he'll kill you!!! Yes, this film features a genie whose master is killed and so latches on to a girl and promptly goes on a kill spree with every intention of killing the girl's father because, oops, she wished him dead...and to think, she could of had a pony.
https://www.imdb.com/title/tt0091707/