DV: Domestic Violence(2005)

Shogo (Kenichi Endo) and Yasuko (Yuka Hanabusa) are happily married. Until one evening when he slaps her in the face for reconsidering the promise she made before their wedding: to quit her job and devote herself to domestic chores once the knot was tied. From that first instance of aggression, things rapidly spiral out of control. Mounting violence becomes the new order of the day between the couple. (from midnighteye.com)