龙番市刑警队长林涛（李现 饰），与法医科科长秦明（张若昀 饰）是多年的老朋友。秦明的助理因不堪忍受秦明的古怪脾气打报告辞职。痕检科的李大宝（焦俊艳 饰）被借调加入工作小组。期初秦明对身为女生的大宝不信任，但倔强的大宝在破案中，体现出了相当不错的推理和观察能力，并且嗅觉极度灵敏，挑剔的秦明决定留下大宝。龙番警局的铁三角也初告形成。他们互相合作，接连破获了各种匪夷所思的案件。 本剧改编自秦明悬疑推理小说《第十一根手指》。
Henry Fallon, who is wheelchair bound and is suffering from a neurological disorder, apparently commits suicide and Morse has mixed feelings working on this case as he was once engaged to the dead man's wife, Susan Fallon. The body was found by his son-in-law Peter Rhodes, a local antiques dealer and the victim's wife was in London. When Fallon's doctor advises Morse that Henry didn't have the physical capability to hold a gun to his head, the police realize they may have a murder on their hands. When the police are told that the business arrangement between Fallon and Rhodes had fallen apart, they also have a suspect. Lewis is concerned that Morse is too close to Mrs. Fallon to be objective but in the end, the perpetrators are identified.
尼克是维克托在教堂偶遇的新朋友，这一季主要讲述了尼克和维克托之间的故事。
《美丽的秘密》将以多线叙事线索，刻画一段为爱追梦、为爱救赎、为爱坚守的精彩故事：剧中“丑小鸭”逆转为“明日之星”可谓励志热血，“养育之恩”与“血脉亲情”之间的混乱纠葛看点十足，以及在非亲姐妹、情场劲敌与事业对手”中上演爱情抉择，都堪称《美丽的秘密》必然火爆荧屏的“致胜法宝”。《美丽的秘密》坚持偶像剧的品质创作，同时也力求突破传统风格，力求在故事内容、节奏把握中，传递出更加时尚、更加都市的生活化气息，饱有浪漫爱情的氛围，更带给观众真实的亲近感，为观众带来全面升级、与时俱进的都市偶像剧
