Movie- Ondskan (Evil)

。
Just watching an excellent swedish movie "Evil". It's not a movie full of violence, but it triggers your instinct to make you feel agitated and expect something big. Everyone in some way has a impulse to resort to force or violence, especially when justice disappears and law can't protect good people. There was an evening news last night that a woman was beaten badly because she showed her righteous anger to persuade a big guy not to cut the line. Violence now has become a reasonable act in this land when you just feel "unhappy". I really don't know what the purpose of making law is. Shouldn't it protect good people? Any freedom, I think, should be merely open to people who don't offend others.
In this movie, I totally agree Erik's behavior- using law to defend his own right against the bureaucracy and corruption of school system, and resorting to force to fight against a place without law.