Melancholic
メランコリック (original)
Kazuhiko, a graduate of a prestigious university, wasn't enjoying his life, until he takes a job at a bathhouse. Then he discovers that the baths are used as a space for killing people after closing hours.
Starring Yoji Minagawa, Yoshitomo Isozaki, Mebuki Yoshida, Makoto Hada, Masanobu Yada, Yasuyuki Hamaya, Stefanie Arianne, Keiji Yamashita, Hiroko Shinkai, Yuta Okubo
It's a crime and drama movie, and has a rating of 6.5 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from United States.