YUNG and CHIT have a quarrel. CHIT and her colleagues go to Mr. CHUNG's house to have dinner. HAY is not there. YUNG comes to take her. They forget each other. YUNG worries as FAY has not been heard for days. YI explains for FAY but YUNG links FAY and HAY up for HAY's disappearance. From some fingerprints, YUNG finds that HAY has spent some days in Larnma Island Hotel. Moreover HAY had withdrawn two million dollars before she disappeared. They suspect FAY. YUNG does not know what to do. Later a corpse is discovered and they suspect that it is FAY.

After investigation, it is certain that the dead man is FAY, YUNG's brother, YUNG is in deep grief, He works round the clock, hoping he can find the killer, He recalls that FAY has fought with YIP WAI, TIN finds MAR HO HING, who is believed to be the last one seeing FAY before he was killed, HING admits that she met FAY but nothing was special, She only informed FAY that HAY wanted to leave him, YUNG's father and younger sister come. They are also very sad. From the record on blood type, YI discovers that HAY's son is not HOI's. Instead FAY may be his father. On the other hand, LUNG finds a video tape shot by FAY. She gives it to YUNG.

From the video tape, they realize that FAY and HAY did not commit adultery. HAY was raped by WAI before her marriage and WAI continued to blackmail her, FAY went to argue with WAI after he learnt the case from HAY. YUNG arrests WAI but WAI has witnesses to prove him not guilty, At the same time, JIMMY, who is HOI's employee, is poisoned and dies. From JIMMY's girlfriend, YUNG knows that JIMMY saw HAY after FAY had been killed. YUNG finds it strange. CHIT watches television and sees CARMAN, YUNG's ex-girlfriend. CHIT is annoyed with some bits of terrible memory. YUNG realizes that JIMMY did not see HAY. It was somebody else. He goes to HOI's house with YI immediately. When they arrive, there is an explosion.

YUNG, HOI and HAY are hurt and sent to hospital, WAI is killed in the explosion. Ignoring CHIT'S warning, YUNG questions HOI, HOI admits that he had falsely blamed HAY and FAY, so he tried to kill them with HING's assistance, As JIMMY had seen HING at the scene, HING killed him, Later they realized that they had made a serious mistake, Thus they tricked WAI and tried to kill him with the explosion, FAY's case is solved. HING also dies as she has been injured seriously. At the same time, the gap between YUNG and CHIT continues to widen.