大宋淳祐七年,钦州灵龙镇灾患频现,民间谣言乃蛟龙作祟,需将童男童女投入锁龙井喂食蛟龙方能得享安宁。祭祀恶俗持续多时,不知多少无辜孩童葬身龙腹,灵龙镇哭声震天,家有幼童者皆人心惶惶。新科进士庄严担任主簿后,坚持进入锁龙井调查蛟龙事件,却不想竟因得罪龙王而锒铛入狱。灵龙县仵作小宛为救心上人,不远千里求请已金盆洗手的宋慈出山查明真相。案件疑点重重,宋慈和小宛联手突破重重难关,终于赶在庄严被斩之前查明真相,庄严得以平反,小宛也在众人的见证下正式向宋慈拜师学艺。然而眼看灵龙镇逐渐恢复平静,宋慈却发现原来真相并没有他想象中那么简单。。殿试在即,应天书院却传闻考生被阎罗索命,包拯在收到恩师院长的奇怪信件后,与展昭动身前往书院一探究竟。然而,这座书院并没有看上去的那么简单,院长不知所踪,书生接连身亡,整个书院笼罩在诡异的气氛之下。包拯为寻回恩师,阻止阎罗的杀人行动,决心将此事调查清楚。在书院中遭遇咄咄逼人的监院,偶遇青梅竹马的院长千金,包拯更只身探访阴森恐怖的阎罗十殿。这些看似毫无关联的人事物,随着真相的逼近逐渐交织在一起,而令包拯没想到的是,这不单单是一起连环杀人案,朝堂之上还隐藏着更大的阴谋……。Life in the Catholic Church of the Holy Redeemer in Detroit is upset by a series of killings whose victims are all priests and nuns. All victims are found with a black rosary in their hands. Father Koesler begins collaborating with the police but soon finds himself in a spot when the killer decides to choose him as confessor.。