The Defected

The police narrow down the suspect pool and focus on LAW BIU, surmising that he is also linked to the acid attack case. Meanwhile, LAW BIU is taken away by WAI-KIU and LAI-YIU, who have him tortured. WAI-KIU secretly installs surveillance software on WING-JING's mobile phone, reporting the RCU operations to the Battalion Commander. After WING-SA takes LAI-HAN to the hospital to visit BING-GO, HEI-WAH personally escorts BING-GO from the hospital back to the detention center. It turns out that HEI-WAH tries to use BING-GO to lure out the Battalion Commander, but her plan fails. In the meantime, the Battalion Commander is in WAI-KIU's home interrogating her, above which he even plots to lure WING-JING there to kill one more police officer. After BING-GO is forced out of the car, he reveals HEI-WAH's secret to her loyal subordinate NG WAI-CHUNG. Right away, HEI-WAH orders a sniper to shoot at them, and WAI-CHUNG is shot'