姬如雪为救李星云坠崖生死未卜李星云苦苦找寻姬如雪同时继续追查龙泉宝藏的下落江湖各派为夺宝藏心怀鬼胎各自派人跟踪暗算李星云张子凡陆林轩等人陆林轩意外中毒导致失忆张子凡心痛不已决定于陆林轩成亲成亲当日张子凡再遭暗算陆林轩再次中毒被送往幻音坊疗伤陆林轩被女帝用功修改记忆成为一名杀手刺杀张子凡过程中被九叔十叔打伤再次陷入昏迷此刻姬如雪得知神秘身世李星云离龙泉宝藏越来越近就在群雄集结龙泉宝藏之时又一个惊天秘密震慑众人……
本剧由四宗发生在香港扣人心弦的真实刑案带出四个令人惊惧的罪行藉由一队重案组的警探办案实录贯穿而成包括耸人听闻的「屯门色魔强奸案」喧腾一时的桃色纠纷「溶尸案」使市民提心吊胆的「大圈仔军火械劫案」及「淫业大厦扫黄行动」案件生动地描绘各阶层犯罪的人性丑恶而编剧为了加强剧中人物与案件的关连性特别穿插男女主角CID张兆军林嘉华女CID丁兰蓝洁瑛重案组总督察方伟陶大宇扫黄组女总督察刘婉仪梁婉静及聂志华张国强一段微妙的五角感情关系交错编织成属于都市人性化的实录档案
宋真宗年间秘密筹组的情报组织金龙门门下高手如云卓不凡吴岱融骆孤峰欧瑞伟及韩椎李家声尤为佼佼者三人出生入死屡建奇功辽国二太子耶律修哲为达颠覆中原之目的亦成立紫薇山庄由展聘婷罗慧娟主持婷利用凡之感情介入凡与曲云烟李婉华之间其后凡发现婷之真实身份依然斩情丝与之对抗然婷与哲则因争夺而明争暗斗
Six months have passed since Dr Ogden moved to Buffalo and Det Murdoch is constantly a loggerheads with Dr Francis, her replacement While Insp Brackenreid thinks highly of Francis, who was recruited from Scotland Yard, Murdoch finds him stubborn and unimaginative He also seems to be in no rush to help Murdoch with his latest case where human body body parts were discovered on a riverbank encased in cement A homeless man living in the woods nearby is questioned and released and Murdoch corresponds with Dr Ogden who offers him valuable advice in her letters He also gets help from a retired detective, Malcolm Lamb Murdoch connects his current investigation a rape and murder that had occurred many years before
