I think all of kubrick's films are demonic in nature. the beauty of it is you can take them as they are and only see them on the surface level, or you can delve deeper into the rabbit hole and discover how truly fukking unsettling they all are. I'm not sure what his most demonic film is..its between eyes wide shut, the shining, 2001, lolita, full metal jacket, and strangelove for me (basically all his damn films!) 
name some demonic films

name some demonic films