POK points out that the victim could be YUNG WAI. He decides to try one more experiment and asks YUNG for further information of YUNG WAI. SUM cannot extract DNA from the skull for identity verification but will make another attempt with the teeth. SUM tries his best to seek YAU’s forgiveness and finally makes up with her. TING and KONG try to find out how the victim was killed based on the evidence available. POK questions their assumption, which provides them with a new direction for further investigation. The police express doubts about the statements provided by Mr. and Mrs. CHEUNG, the distant relatives of YUNG WAI who put her up during her stay in Hong Kong. They find at the couple’s home a few specks of blood left by YUNG WAI. Mr. and Mrs. CHEUNG are then held in custody. Knowing that TUNG’s working environment is not so good, POK urges him to resign to enjoy a happy retirement. Despite what POK says, TUNG has got his own plan.… ...

The police arrive at CHING’s home for investigation. They discover that CHING is in fact the missing YUNG WAI and that she has been staying in Hong Kong with a fake Identity Card. YUNG WAI and her boyfriend RED are taken in for questioning, during which RED admits killing FUNG SIU-FA, a friend of YUNG WAI from her days in China. He points out that FA and YUNG WAI look very much alike, which then leads to the misunderstanding that YUNG WAI is the victim. POK concludes from the evidence that RED has been lying, so YUNG WAI has no choice but to reveal the truth. YUNG regrets coming to Hong Kong. She did not expect that her search for YUNG WAI would eventually cause her to be imprisoned. YAU and her staff try to console YUNG with some words of encouragement. YAU comments on the plot of a detective novel written by SUM, which draws them into an argument.… ...

TING stays up late to design a book cover for SUM’s latest novel, for which SUM feels so grateful. SUM and TING have bought a lot of food and are going to prepare a romantic meal at home. But most of the dishes prepared are overcooked and they end up having to make do with lunchboxes. LUNG would like to arrange a blind date for YAU. YAU has no choice but to reveal that she has been sort of going out with SIU-CHUNG. VIVIAN dies of a drug overdose. After a post-mortem examination, SUM finds that VIVIAN had undergone plastic surgery to sustain a perfect appearance when she was alive. WOON still cares about KIN despite their separation. The police suspect that KIN has killed VIVIAN and tried to make the murder look like a suicide. KIN is held for questioning, during which he explains the cause of the wounds on VIVIAN’s face and denies the accusation against him. Having tested WOON’s judgment, POK lets her carry on with the investigation.… ...