YI visits FUK, who is SAN's father. It is too late as he has died for two days. The way of handling the rope is the same as SAN’s. FUK has no reason to kill himself. There are a Double-T ticket and a map in his pocket. With the help of the map, the police find BILL's corpse. BILL is a wanted criminal who committed a bank robbery five years ago. He was killed but the money is not with him. As BILL and HO have the same blood type, thus five years ago, BILL was killed instead of HO. It is clear that the one who has taken the money is the killer. SAI, CHOI and KEUNG are suspected as they became rich in the past five years. MAN returns to FUK's house and a needle is found. She realizes that FUK was paralyzed and became unconscious before being killed. They check FUK corpse and MAN's idea is proven.
