sendup of the stereo-typical Japanese family: dad is a salaryman jerk, unable to relate to anyone; mom is a hopeless housewife; the older son is a moderate academic success; but the younger son is a rebellious goof-off for whom a tutor must be hired. The tutor, played by the prototypical bad-boy actor Matsuda Yusaku, proceeds to blow the entire family apart.

Overview from themoviedb.org