TUNG and SUM are a little embarrassed to see FEI back while FEI seems to have found out about their relationship too. A female corpse dressed in vampire costume is found inside a toy company. YEE and her team have soon arrived at the scene for investigation. The victim, MOON, is lying dead with a wooden peg in her chest, which shocks everyone to the core. SIM, when giving statements, reveals that MOON was having an affair with the toy company owner CHAN WAH-KEUNG, but KEUNG is currently in mainland China and cannot be reached by phone. PO points out that there is some pomade trapped in MOON’s fingernails, so YEE begins to suspect the security manager MA TSUN-PING, who loves to grease his hair with pomade. FEI seems rather distracted after receiving a call from the United States, which worries TUNG quite a bit. SUM finds FEI’s cellphone in TUNG’s car, and decides to return it to FEI at once.… ...