LUNG investigates the dead body and he believes that this person was killed by animal’s claws. LONG and CHING carry out investigation at SUM’s home. They discover that Silly KEUNG has sneaked into SUM’s home and he has become unconscious after taking many soft drugs. LONG sees some stage images upon touching the soft drugs. He sees a cat’s claw scratching him crazily… FOON reveals that a strange man is staying in the holiday flat and D.I.E. team arrests SHU BONG. LONG questions MAN again about her older brother’s death. He touches the photo of MAN’s brother and he sees some weird images again. LONG and CHING investigate the Cat Stone and they find a black cat hiding behind the stone. They follow the cat to a cave and find broken pieces of clothes that belong to MAN’s brother. They also find a broken claw there. FOON reveals that she has killed SUM. LONG rushes back to the holiday flat and MAN also claims that she is the murderer.… ...