Da-Shu and Guo-Guang found out that the last person the latest murder victim was in contact with was Ruo-Yun's younger son, Shan-Wen! The duo turned up at the doorsteps of the Sun family to question him. Guo-Guang, the young police officer revealed looks of distraught upon arriving at the residence. They requested for Shan-Wen to undergo a DNA test to cross-match with the semen sample they had discovered in the victim body. Ruo-Yun protested against the test but her husband, Allan, agrees to cooperate. The next morning, another female corpse was found, mutilated with stocking-clad limps…