This unemployed typical japanese shy guy starts working at a neighborhood bathhouse, after running into an old female classmate there. Turns out the place also serves as a yakuza killhouse at night. From here on we get an interesting combination of something reminiscent of the TV show Dexter and a romance/comedy. While the subject matters is a little dark, it's quite a mellow and warm movie and the characters are all quite likeable. I enjoyed it.