PO meets her sister-in-law, LEE, in a temple. LEE accuses of PO having adultery. PO pretends not to hear her. LUNG thanks PO for his career. MO asks FOK to sponsor for the charity. FOK agrees to lend his house for the event. MO and PO go to check out the house and a worker dies at the same time. CHEE and LUNG examine the body, so LUNG has a chance to show off in front of PO. There is a plague in the newest town. CHEE and MING are assigned to investigate. As soon as CHEE leaves the town, FOK dies. LUNG examines his body and reckons that FOK dies from a stroke. However, LEE insists that CHEE should examine FOK’s body again. CHEE and MING meet a government official in during their trip. They all go to investigate the plague situation and eventually finds out its cause. KIT finds out that PO’s servant maid has bought some Persian spices and suspects that something is going on.

玉宝在观音庙遇上关夫人李氏，遭李氏奚落，子龙看不过眼为玉宝抱不平，李氏反指玉宝勾三搭四，子龙大怒，而玉宝假装默默承受，子龙多谢玉宝当日提点自己拜师学验尸。时邻县发生天灾，大批孤儿流离失所，如梦不忍，遂找富商关万褔捐钱兴建慈幼局，万褔一口答应并借出大屋。如梦与玉宝往大屋视察建筑进度，遇上工匠意外死亡，宋慈与子龙负责验尸。子龙表现出色，得宋慈认同又能在玉宝面前一展身手，不禁大为兴奋。时方州爆发瘟疫，宋慈和明叔奉命前往调查，宋慈把验尸重任交比子龙。

宋慈一离开即发生凶案，万褔突然暴毙，子龙前往验尸，认为万褔是死于马上风，但李氏认为子龙与玉宝有私情，不接纳子龙的判断，坚持等宋慈回来再复验。宋慈和明叔在方州查案，发现死者死在牢房中，怀疑死者可能死于集体中毒，而源头来自溪边的尸体，案件真相水落石出。时经略使高云轩到疫区调查，对宋慈相当赏识。展杰发现关家案发现场有奇怪香味，调查下得悉玉宝的丫环曾买波斯香料「依兰依兰」和「到手香」，心感玉宝有可疑。时玉宝约会子龙探听案件消息，子龙安慰玉宝案件快将结案，二人见面，被路过的丹凤见到。

玉寶在觀音廟遇上關夫人李氏，遭李氏奚落，子龍看不過眼為玉寶抱不平，李氏反指玉寶勾三搭四，子龍大怒，而玉寶假裝默默承受，子龍多謝玉寶當日提點自己拜師學驗屍。時鄰縣發生天災，大批孤兒流離失所，如夢不忍，遂找富商關萬褔捐錢興建慈幼局，萬褔一口答應並借出大屋。如夢與玉寶往大屋視察建築進度，遇上工匠意外死亡，宋慈與子龍負責驗屍。子龍表現出色，得宋慈認同又能在玉寶面前一展身手，不禁大為興奮。時方州爆發瘟疫，宋慈和明叔奉命前往調查，宋慈把驗屍重任交比子龍。

宋慈一離開即發生兇案，萬褔突然暴斃，子龍前往驗屍，認為萬褔是死於馬上風，但李氏認為子龍與玉寶有私情，不接納子龍的判斷，堅持等宋慈回來再複驗。宋慈和明叔在方州查案，發現死者死在牢房中，懷疑死者可能死於集體中毒，而源頭來自溪邊的屍體，案件真相水落石出。時經略使高雲軒到疫區調查，對宋慈相當賞識。展傑發現關家案發現場有奇怪香味，調查下得悉玉寶的丫環曾買波斯香料「依蘭依蘭」和「到手香」，心感玉寶有可疑。時玉寶約會子龍探聽案件消息，子龍安慰玉寶案件快將結案，二人見面，被路過的丹鳳見到。

玉寶在觀音廟遇上關夫人李氏，遭李氏奚落，子龍看不過眼為玉寶抱不平，李氏反指玉寶勾三搭四，子龍大怒，而玉寶假裝默默承受，子龍多謝玉寶當日提點自己拜師學驗屍。時鄰縣發生天災，大批孤兒流離失所，如夢不忍，遂找富商關萬褔捐錢興建慈幼局，萬褔一口答應並借出大屋。如夢與玉寶往大屋視察建築進度，遇上工匠意外死亡，宋慈與子龍負責驗屍。子龍表現出色，得宋慈認同又能在玉寶面前一展身手，不禁大為興奮。時方州爆發瘟疫，宋慈和明叔奉命前往調查，宋慈把驗屍重任交比子龍。

宋慈一離開即發生兇案，萬褔突然暴斃，子龍前往驗屍，認為萬褔是死於馬上風，但李氏認為子龍與玉寶有私情，不接納子龍的判斷，堅持等宋慈回來再複驗。宋慈和明叔在方州查案，發現死者死在牢房中，懷疑死者可能死於集體中毒，而源頭來自溪邊的屍體，案件真相水落石出。時經略使高雲軒到疫區調查，對宋慈相當賞識。展傑發現關家案發現場有奇怪香味，調查下得悉玉寶的丫環曾買波斯香料「依蘭依蘭」和「到手香」，心感玉寶有可疑。時玉寶約會子龍探聽案件消息，子龍安慰玉寶案件快將結案，二人見面，被路過的丹鳳見到。