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.