The overall tone of the series is very negative. It has no shades of grey, only black and white. The people who are shown bad, are bad in every possible way, circumstances help them, have the power to control others, can lie through courts, police doesn't get them, are mostly happy. The people who are shown good, get the worst of the circumstances, are helpless, cant control anyone or themselves, courts/police get them, are mostly sad and crying. I'm not sure if real life is like this. Quite frustrating to watch.