It tells the story of Adolfo Novak, patriarch of one of the most powerful families in the country, who gathers his family and close friends to celebrate his 80th birthday. Behind the toasts and smiles lie decades of secrets, betrayals, blind loyalties and a strong desire for revenge. The evening will end up blowing up and revealing a truth that, when finally comes to light, will be much more unexpected and surprising than any previous suspicion.
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。
驿站附近的乐活山庄，暗中收集情报。女掌柜田津津聪明机警，乐于助人，跑堂田大壮武功高强，琴师朴岛毅见多识广。账房田大娘眼力佳记性好。四人各有秘密，却凑到一起。意气风发的福将军因得罪权贵，被贬中枢驿站。但实际上是来中枢城查一件要案。二人日久生情之际，边关急信丢失，送信差役惨死，彻底搅动了城中风云
