CHUNG finds out that CHEONG is bleeding due to throat-cut. He brings YING to the police station for investigation. CHUNG takes attestation from YING. She admits that Rebecca had paged her to serve the customers. Meanwhile, YING's beeper is on. Rebecca again calls her to serve another customer at a hotel. Rebecca (Chinese name CHI) appears. YING chases CHI to the main entrance. The cops stop YING. However, CHI has already gone. CHUNG sees a bar-tender, S. They took a picture of CHI. CHUNG shows S the picture. S recognizes CHI. CHI holds a birthday party for MAN. CHI invites TAI to attend the celebration. CHI stupefies MAN with some sedative. TAI arrests CHI However, CHI's attestation proves that YING is not the one who killed CHEONG. It is because she is still in prison when CHEONG was murdered.