The Roommate
"What you don't know... can kill you."
A paranormal horror thriller involving two young women who start off as roommates in Tokyo but become much more. These women have a such have such a wonderful time living together until an uninvited "guest" possesses one of them. The demonic entity forces the woman to do things against her will including murder.
Directors: Hisaaki Nagaoka
IMDB: tt1942113