Overview: As the police has no other evident to accuse IVY, FUNG detentes her for forty-eight hours so as to collect more information. when YUNG sees YAN wearing the ring given by TO, he suspects her as the real secret lover of TO. His idea is consolidated when he sees YAN expressing her hatred by tearing LAM's clothes. Moreover YAN knows driving and she has a car similar to that of IVY. When they get the information of where the car is, YUNG and YI go to arrest the killer. They are late and the car has been driven away. However they do not give up. They follow it and at last pushes it into a dead-ended alley. There they check who the driver is.