A rich Indonesian girl disappears and the police have been asked to look for her. Officer Xiao Man go in search for her and discover a human trafficking ring as well. The ring-leader Shan Fan and his partner Zhengyi escape, but Xiaoman recognizes Zhengyi's back view. 印尼富商的女儿失踪，要求警方协助调查，女警小曼在搜寻的过程中发现此案与人蛇集团有关。小曼带同组员到禁锢地点进行突袭，山番带领正仪等手下往后巷逃走，小曼追赶，虽然被他们逃脱，但小曼认出了正仪的背影。

Xiaoman catches Zhengyi but Yuze interferes. It turns out Zhengyi is Yuze's mole. In the plan, something goes awry, and someone dies because of Zhengyi. Guilt-ridden, she vows that she doesn't want to be a mole again after this. 小曼捉到正仪，但她装傻胡扯，不肯合作。重案组雨泽前来带走正仪，引起小曼不满。原来正仪是雨泽的卧底，雨泽早就猜到山番的计划，还故意让小曼展开行动，让黑痣成为正仪的替死鬼。正仪感内疚，表示捉到山番之后就不要再当线人。

Yuze, Zhirong and Andrew go and pay their respects to Lao Cai. They see Guosheng there as well, and are reminded of the events 15 years ago. Zhirong tells Yuze he feels that Guosheng has been following him, and Yuze feels uneasy. 雨泽、志荣和Andrew不约而同地到码头长堤悼念死去的老柴，还看到国盛匆匆离去的背影，四人隐藏着一段15年前的秘密。志荣告知雨泽他被跟踪，怀疑跟踪他的人就是国盛，这件事可能和他们之间的秘密有关，雨泽之后也接到了恐吓信…

Yuze chases Shan Fan, and Zhengyi later sees Shan Fan using the money to bribe Yuze in hope that Yuze will let him go. In the midst of chaos, Zhengyi realises that Yuze and Shan Fan have disappeared, along with the money. Only a patch of blood is left behind. 雨泽与山番在空屋对峙，雨泽用枪指着山番，山番以手提袋里的60万试图利诱雨泽，被正仪见到。阿毛攻击正仪，正仪逃走，被警方所救。正仪表示看到雨泽和山番在空屋对峙，但众人来到空屋时已失去两人踪影，只留下一滩血迹。

Zhirong searches Yuze's flat and is questioned by Andrew. Zhirong shows Andrew a threatening note left behind in the flat. Andrew suspects that this may have something to do with the case 15 years ago. Andrew decides to tell everyone that Yuze succumbed to corruption and disappeared. 志荣到雨泽家搜索，被Andrew发现，问他到雨泽家的目的。志荣拿出一张写有"雨泽失踪，小心"的字条，Andrew怀疑警察内部有内鬼，雨泽失踪的事可能和当年的事有关。为了不让当年的案件被牵扯出来，Andrew打算要让所有人认定雨泽因贪污而失踪…

Xiaoman starts to investigate Xiu Ling's case and along the way discovers the sacrifice Xiu Ling's father made to look for her after she went missing. Xiaoman explains to Xiu Ling that what her dad did was because he loved her. Father and daughter make up. 小曼开始思索秀灵的案件，发现关键是在曲棍球棒上，她发现淑芳遭绑架事件是浩东一手策划的，目的是找出失踪的女儿秀灵。小曼告诉秀灵，虽然浩东为了找她用了极端的方法，但这也显示了浩东对她的爱，父女俩终于和解。

Xiaoman starts to investigate the case of the missing children. Some of them return dressed as dolls. Xiaoman follows the trail of a clown and suspects that the clown has something to do with the missing children. 小曼调查小孩失踪案件，失踪孩子之后会身穿娃娃装地出现在闹市，而占卜师星晨竟能准确测出小孩出现的时间和地点，令人啧啧称奇。小曼根据星晨的预测在闹市埋伏，失踪小孩果然出现，而小曼也发现可疑小丑的踪迹，展开追捕…

Xiaoman and Zhengyi return to the place where Xiao Bo went missing. They discover that what Meiyue said did not tally to the evidence. Evidence pointed out that the time Xiao Bo went missing was different from what Meiyue said. They suspect Meiyue may be hiding something. 小曼和正仪到曹博失踪的地点调查，发现美月所说的曹博的失踪时间似乎与正确的失踪时间有所不同，当天美月虽然在现场找小孩，但现场的所有目击者都无法证明曹博在失踪之前曾经出现过，小曼和正仪怀疑美月有所隐瞒。

Zhen Bang reveals the reason behind his motive for killing Cao Bo. He has loved Mei Yue all these while, but seeing her unhappy in her marriage made him take drastic actions. He decides to take action against the problematic Cao Bo, to ease Mei Yue's burden. 振邦说出杀死曹博的原因。原来这些年来，他一直深爱着美月，却发现美月婚后的生活并不美满。面对脾气暴躁的曹品，加上患有过动症的曹博，使得美月精神上承受巨大的压力。为了帮美月解脱，振邦于是杀死了曹博…

Xiaoman and Zhengyi trace Xing Cheng's last steps before he was killed. They bring Mei Yue along as well. Xiaoman suspects that Xing Cheng was injured near Mei Yue's office. 小曼和正仪来到星晨尸体被发现的地方找线索，发现他在受伤之后走了很长的路才求救。两人来到美月的工作地点，带着美月一路走回星晨尸体被发现的路线。小曼怀疑星晨是在美月公司附近遇刺的，他为了包庇凶手的身份而大费周章…

A teacher Shuzhen falls to her death from a building. Xiaoman believes it's the work of a perverted killer. A man was seen nearby before Shuzhen was killed. Xiaoman gets his face drawn out and it turns out that the man resembles Yuze. Is Yuze actually involved? 女教师淑真从公寓天台坠下身亡，小曼怀疑是变态凶手的杰作。淑真坠楼之后，公寓保安曾看见有个男人坐在不远处的车里，小曼于是要他做拼图，不料拼出的是一个酷似雨泽的画像，小曼不禁愕然，难道雨泽和这件事有关？

Guocheng tells Andrew that he feels Lai Cai wasn't intentionally killed by Xiao Lang. He feels that it was Yuze who pressured Xiao Lang to kill Lao Cai. Yuze has always believed that Lao Cai took the money, and with Lao Cai gone, Yuze can now easily leave with the money. 国盛向Andrew提起15年前老柴是被笑狼一枪打死的，国盛认为笑狼根本没有这个胆，是雨泽叫他做的。雨泽一直都说是老柴私吞了那笔赃款，所以唆摆笑狼帮他杀了老柴，老柴死了，雨泽就顺理成章地把这笔赃款算在老柴的头上。

Xiaoman and Zhengyi suspect that Zhong Xiao has something to do with the women who have fallen to their deaths. They realise that Annie is the type of girl Zhong Xiao is interested in, and decide to get her to lure him out. 小曼和正仪问忠孝是否认识Jasmine、丽琦和其他坠楼女子，忠孝一一否认，但小曼和正仪都觉得忠孝的背影很熟悉。两人发现阿妮无论身高、体型、气质都跟那些失踪少女很相似，是忠孝喜欢的类型，于是要阿妮装扮去引忠孝入局。

Annie awakes at Zhong Xiao's place and finds that she has been drugged. Jasmin has died and Xiaoman quickly tells Annie to leave Zhong Xiao's. Xiaoman also asks Annie if Zhong Xiao ever left his home, but a flustered Annie lies to hide the fact that she was drugged. 阿妮在忠孝家醒了过来，发现自己曾经注射毒品，心里非常慌乱。Jasmine坠楼身亡，小曼打电话给阿妮，叫她离开忠孝家，并问她忠孝是否曾经离开过？阿妮慌乱之下，隐瞒了自己曾经昏迷的事。小曼不解，如果忠孝没有离开，Jasmine怎么会坠楼呢？

Xiaoman discovers that Zhong Xiao has a secret past. He used to love his tuition teacher, but she was attached with a boyfriend. He bribes her boyfriend to leave her. But little does he realise that in her despair, she kills herself. Zhong Xiao is wracked with guilt. 小曼揭穿忠孝利用失踪少女来悼念他心里最爱的女人。原来忠孝喜欢补习教师雅轩，可是雅轩已有男友Jason，忠孝为了得到雅轩，付钱给Jason要他离开雅轩，谁知雅轩一时想不开跳楼自杀，忠孝悔恨不已…

Xiaoman follows Zhirong to see what he is up to. Zhirong vaguely sees Dexing's shadow, and later on sees a suspicious man who seems to be carrying a gun. Just at the moment, a car speeds by Zhirong. Xiaoman senses danger and yells out to him. 志荣执行保镖任务，小曼跟踪监视，志荣似乎看到德兴的身影，之后又见一可疑男子手往外套里掏，似乎要掏出枪来。志荣第一时间压制住对方，却发现是虚惊一场。此时，一辆车急速驶来，小曼警觉有危机，对志荣高声叫喊…

Xiaoman traces Yuze's whereabouts to an old building. She sees photographs of Andrew, Zhirong, Guosheng and the rest. Amongst the photos, Guosheng and Zhirong's photos have been marked with an "X". The means that the only man left is Andrew. 小曼追查到雨泽可能藏匿的地点，带领手下往搜寻，她在一废弃旧楼内发现有许多志荣、Andrew和国盛等人的照片及资料，其中国盛和志荣的照片被划上一个大大的"X"记号，显示二人已经被解决了，只剩下Andrew。

Thomas的死因经过化验，是因为对麻醉剂过敏而导致死亡。为了找出Thomas，广明和秋君之间的关系，小曼尝试询问秋君不过，反而惹得秋君生气。为了找出真相，小曼和正仪从Thomas的遗物里发现了德士收据，查知他生前最后来过的地方，并前往那里去寻找线索。二人碰巧遇见了美琳，问美琳是否见过Thomas，怎料美琳看到Thomas的照片，就一阵心慌反应，说没见过。小曼顿时起疑。 Andrew在公寓偷袭国光，抢走了他的佩枪。德伟发现后立刻报告小曼，小曼立刻冲进公寓寻找Andrew，终于在天台找到他。只见Andrew神色不安，拿着枪指着小曼。Andrew开枪，欲杀死小曼，所幸德伟及时冲出来，开枪杀死了Andrew，但自己也中弹。小曼经过调查后，发现原来“雨泽”拐带了Andrew的女儿，要挟他杀死小曼，但真正目的也是利用警方来解决Andrew。 小曼来医院探望德伟，感激德伟的相救。德伟鼓起勇气示爱，但知道小曼不会接受自己，表示二人还是好朋友。 另一方面，小曼和正仪也找到了证据，证明了美琳的真正...

Xiaoman learns that the man who took Zhiyong away, Liu Zhiming, has been put away in a mental hospital. She goes and looks for Zhiming, but he is unable to give her any clues. As she is leaving, she gets knocked unconscious. She wakes up to find herself tied up in an un-used, dilapidated factory. 小曼得知当年带走智勇的表叔刘志明因精神失常而被关在新山的精神病院，于是往见志明，但他神志不清，只说智勇等到那一天一定会报仇，小曼不明其意。她在离开之后突遭伏击，被人打晕，醒来后发现被禁锢在一废置工厂内。

Xiaoman and Zhengyi rescue Yuze out, and send him to the hospital. The doctor says he has been very weak for a long period of time, and it would have been impossible for him to kill Andrew and the rest of the men. Zhiyong sneaks into the hospital, and Xiaoman gives chase. 小曼和正仪救出了雨泽，虚弱的雨泽被送入医院，医生说他长期被注射了强效镇静剂，不可能是杀死Andrew等人的凶手。小曼派人24 小时看守雨泽，智勇潜入医院，要杀死雨泽，小曼突然领着众警探冲入房内，当场逮住了智勇，而智勇竟然是…