Seishun no satsujin sha

The story of a a young man who has endured an enormous amount of disappointment and frustration at the hands of his parents, despite their apparent love for him. Though they prevented him from going far with his schooling, they have set him up with a business (a snack bar) of his own. However, when they forbid him to have a serious affair with a girl who works for him, he goes somewhat berserk and knifes his father to death.