以真实案件为基础，采用纪实风格，借单元案串联剧情。全片紧扣声纹技术破案视角，通过对声音线索抽丝剥茧，破解单元谜案、挖掘关键信息、揭开被掩盖的真相。影片以快节奏叙事与细节铺陈，凸显声纹破案的独特魅力，既展现警察对正义的坚守，又将人物命运融入案件之中，让观众沉浸式潜入声音的世界，感受悬疑与宿命感的交织。
穆云清（于轩晨 饰）和夫人余映晚（李佳洁 饰）为保护城主令双双被杀。余映晚醒来发现自己重生了，而穆云清对她却极为厌恶。为了查出真凶，余映晚留在城主府见招拆招，却发现穆云清也是重生而来。幕后主使伺机而动，他们能否改写命运……
As Leo's replacement Thomas Chamberlain arrives Nikki investigates the murders of Rachel Freedman, shot in the head, and her little autistic son Nathan, who was poisoned. Nikki rejects policewoman Anne Burchett's theory that Rachel killed them both but is perturbed when an impostor, claiming to be Rachel's sister, visits the morgue. At the same time the disfigured corpse of Eva Liron is discovered, killed with the same poison as Nathan. She had been the nanny to French hot shot footballer Isaac Dreyfus and was planning to blackmail him over a sex tape of them both. Jewish Isaac is a controversial figure due to his anti-Muslim sentiments but he denies ant part in the murders. Then another victim, Isaac's agent Mousa, is discovered dead.
在著名的阿若瓦比女校，遭到排斥和霸凌的女生策划了一系列危险的报复计划来回击霸凌者。
故事讲述成为了罪犯的哥哥葛城勇吾以及成为了警视厅搜查一课刑警的弟弟圭吾。弟弟因在杀人未遂事件中被测出了与嫌疑人的DNA跟自己完全一样而遭到逮捕。此时他想起了在20年前因被诱拐而下落不明的双胞胎哥哥。
分宁才子黄庭坚进京赶考，汴京城外遇布衣打扮的王安石夫妇遭人刺杀，幸突然出现的神秘女子兰溪和其弟信中奋力相救。新皇宋神宗闻悉震怒，责令御史赵挺之查办，赵挺之诬陷是兰溪信中所为，黄庭坚与好友秦观、米芾愤愤难平，设计相救。赵挺之怀恨于心，和对黄庭坚许亲不成的权臣蒋子奇相互勾结，拒黄庭坚于考场之外。在欧阳修的关照下，黄庭坚得以假名入试，一举高中，为他鸣不平的秦观却意外落榜，原来这一切竟都是为苏小妹而起。
