A witness states that SUN jumped into the sea and killed himself. YI suspects that he killed himself as he felt guilty. However TIN does not accept YI's conclusion. YUNG and his colleagues check SUN's house and from SUN's MTR tickets and appointments, he could not be with HO when HO was killed. YUNG appreciates TIN's talent. As YI and TIN have different ideas on the case, they argue. At the same time, YI is attracted by MEI's charm. YUNG finds the relationship between HO, SUN and MEI's mother. MEI's mother was pregnant when she married HO. On the other hand an old worker reports that after MEI's mother death, HO raped MEI when he thought MEI was her mother. YI is confused and keeps an eye on MEI's behavior and character. YI's aunt is hypnotized and recalls that she did not witness HO's pushed down hill. She thought she saw the case as instructed by MEI. It is clear that MEI is involved in the case.