When the imprisoned serial killer Lasse Maasalo's face and a text "Let's make the world a better place" are painted to an underpass with blood, Kari Sorjonen is forced to confront the most difficult case of his career. 　　译文(3): 当被监禁的连环杀手Lasse Maasalo的脸和一条短信“；让我们让世界变得更美好"；被涂成血迹斑斑的地下通道，Kari Sorjonen被迫面对他职业生涯中最困难的案件。