I liked the good and serious topic here, which is police corruption and evidence planting. Accusing innocent, messing with somebody's life, dealing with dangerous things, childhood emotional trauma, betrayal are all good and serious topics here. Also good is the unpredictability and positive ending. Good scientific explanation unlike in worse movies where nothing is explained. But bad is the too much negativity, violence, and too much common stuff and talk which did cause feelings of boredom and desperation.