As YUNG and CHIT try to stay away from each other, the others cannot bridge them. CHIT knows LUNG's feeling, she invites LUNG to stay in her house. YUNG meets TUNG and YUNG finally has the courage to court her. MAN is a model and her dead body is found. LUNG and YI go to the wedding party of YIP and YIU to question YIU. LUNG cannot control her feeling and YI calms her down. YIP recognizes LUNG as his daughter and gives her a present. However LUNG refuses to take it. YIP is kidnapped by some masked men. LUNG tries to save him but in vain. She is knocked at the head and faints.

YIP and LUNG are kidnapped by TAI and KIN. With the clues left by LUNG, YI knows that they are locked up in Sai Kung. TAI and KIN run away as they find YUNG and YI finding their refuge. YIP and LUNG are saved. YUNG leads his colleagues to arrest TAl.KIN and TIN suddenly feel sick together. They leave the team. TIN thinks that he has cancer. KWAN worries about him. The magazine receives a letter accusing YIP having betrayed his friend KEI. CHIT asks YIP. YIP is angry. CHIT's car is trashed and LUNG suspects YIP. YIP is angry. YIU accompanies YIP to see the doctor. YIP locks himself up in the study immediately after he has returned home. Then he vanishes.

Someone sees YIP at Sheung Chi Cliff. YIP's stick and scarf are found there. As KEI also disappeared at the cliff. It is suspected that YIP has committed suicide as he felt guilty. KEI is found by CHIT and LUNG. He is now a street-sleeper. He discloses the secret to them. KEI stole the gem from an American soldier and he felt guilty. Therefore he gave the gem to YIP. However KEI’s wife thought that YIP had stolen it from KEI. YIP jumped down a cliff but was saved. However his family left him. TIN's health is all right and KWAN feels relieved. KWAN knows that she should not marry HUNG. HUNG is shocked. LUNG remembers that a gypsum statue was sent away on the day when YIP vanished. They go to check the transport company. A box falls down and YIP's corpse is discovered.

YIP was strangled to death. LUNG is depressed. SA finds that LUNG and YIP have been acting strangely. TIN learns where KIN is from HELEN. However KIN escapes. HUNG suspects TIN having protected KIN. It is discovered that YIU is a lesbian and MONG has been her lover. Suddenly it is reported that YIU is dead. ERICA, LUNG and the guard go to her workshop and find her having hung herself. LEUNG brings YI to buy jewelry. Seeing LUNG so depressed, YI gives her a bracelet. He also gives SA one of the same style. SA feels uneasy as she and LUNG wear bracelets of the same style.

To satisfy SA, LUNG requests YI to be her foster brother. YI has to accept the request reluctantly. YUNG discovers that ERICA was also YIU's lover. He suspects her. CHIT is jealous of TUNG who has been so intimate with YUNG. KWAN invites YUNG and CHIT to dine with her. They come across RAN who is KEI's wife. RAN keeps her son's identity secret. RAN hurts ERICA. She admits that YIP and YIU were killed by her. However YUNG and YI suspect that she is only trying to protect her son. After investigation, they find that SING is RAN's son. SING impersonates a doctor so as to visit ERICA. He is discovered, so he keeps SA and LUNG as hostages. YI comes and warns SING. SING agrees to release one of the two girls. YI does not know what to do.