Yiu-chung saves Tat-wah, who hazily recalls an old family extermination case. While On-na is looking for Shun-chiu’s missing cat, she becomes suspicious as she catches sight of Shun-chiu’s chauffeur. She then finds out the chauffeur had definitely taken Shun-chiu’s cat away. But the cat is dead. On-na returns the cat’s ashes to Shun-chiu, who startlingly smashes the urn. Sha-doi and Hon-sam have tacit understanding. On-na feels uneasy as she seems like an outsider. Some morning walkers discover Yiu-chung’s father’s remains among which Tat-wah’s father’s watch is also found. CCSIU launches an investigation into Tat-wah’s family extermination case that took place twenty years ago. They suspect there is still something to be uncovered in this fatal robbery. While Yiu-chung is looking for Chin-ying, Pak-keung comes to seek revenge. The duo are in a dangerous situation.