「There's no beat generation. It's just a bunch of guys trying to get published.」「Life is not encased in one formula whereby everyone acts the same and conforms to a particular pattern. No two persons think alike. We were all made from the same form but in different patterns. Would there be any freedoms of press or speech if one must reduce his vocabulary to vapid, innocuous euphemism? An author should be real in treating his subject and be allowed to express his thoughts and ideas in his own words.」「Evil to him who evil thinks.」
高仓健长了张井上雄彦画风的漫画脸 主题曲魔音贯耳异常洗脑 看完大概也能理解为什么票房爆炸 影片集合了悬疑惊悚探案探险血腥暴力色情政治阴谋等几乎所有的商业片元素 又是在76年那个年份 可以想像对国人的冲击 有些片段到今天仍然很冲击 女主角骑马越过河奔来的桥段 莫名泪目 真是跨越四十年击中心灵 有些街景莫名像香港 有些叙事又莫名希区柯克 看来发达地区一直都是齐头并进的向前走 落后地区则各有各的落后初中女生惠君（徐娇 饰）长期遭校园霸凌高处坠亡，暴行非但没有停止，甚至祸延到闺蜜小彤（王圣迪 饰）身上.
然而，霸凌者也接连殒命于重锤之下.
在连环杀人案的背后，难脱嫌疑的众人逐一浮出水面：小彤的母亲（张钧甯 饰）目睹女儿被胶水封嘴却闭口不言，校工林在福看似知晓内情却冷漠疏离，暗中窥探的神秘男吴望（黄明昊 饰）看似身陷险境却面露笑容……杀害霸凌者的雨夜屠夫究竟是他们其中的何人？调查案件的警官戴国栋（吴镇宇 饰）似乎被假象蒙蔽，探秘过程中，宗宗藏污纳垢的旧事被揭开，所有人都被推到了风口浪尖.
善恶有报罪恶难逃，真相即将揭晓…….
