五百年前小锦鲤菱儿误入紫竹林，红鲤出手相救，从此她们成为了生死相依的姐妹，琼魔降世，为祸人间。青云宗主青芽子用尽毕生修为化结界封印琼魔，哪知琼魔冲破结界再次危害人间。
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.
上世纪六十年代，老艺术家王心刚和田华主演的电影《秘密图纸》风靡全国，给很多人留下了深刻的印象。目前，这部红色经典力作被再度改编成电视剧，由金盾影视、广州电视台、上海文广新闻传媒集团以及北京安平投资有限公司联合出品。 边防某部作战参谋陈亮的前妻去世多年，如今陈亮和身为公安的妻子石云一起照顾着他和前妻所生的儿子毛毛。 特务组织要派年仅27岁的黑桃Q回大陆组织一次特别的特务行动，回来之前他专程去了趟日本，用毒酒毒死了把他带入特务行当的干爹。黑桃Q游回大陆，一上岸直接被抓捕。石云提审黑桃Q，黑桃Q叫出了石云的原名“肖流云”，石云大惊。之后，黑桃Q便在监狱中食物中毒死亡……而此时公安局截获了特务的密电码，破译后只有四个字，“秘密图纸”…………
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。
