The Threshold of a Persona

WAN Sir starts investigating a case on illegal workers and he believes that the gang leader TUNG is involved in the case. YUE visits TUNG and TUNG tries to bribe him. HONG SUK CHING asks KIT, KEI and LUN out for a reunion gathering. CHING is the younger sister of NIN and she suddenly leaves Hong Kong long time ago after being hurt by MING. NIN waits for CHING at the hotel and he reminds her to take medicine. After leaving the hospital, MING stays at HO's home. HO tries to reunite MING and WAI. However, WAI cannot forgive MING for committing adultery with CHING long time ago. YAN discovers that her blood type is different from SING and WING. She suspects that she is not SING's real daughter. SING buys a flat for YAN but YAN doesn't want to accept it for she is not his real daughter. FUNG and HO try to console YAN by persuading her to let it be. CHING questions WAI for MING's address and she talks to her in a bad manner……