The bodies of young girls are repeatedly found in the city, leading Detective Li to suspect a psychopath as the killer. Li's sister, believing the nightclub manager, Mr. Kim, to be suspicious, launches an investigation, but she and Li's girlfriend, Bixi, disappear one after the other. Following Mr. Kim's trail, Li discovers that he is using women's fighting as a lure to sell hallucinogenic drugs. Li rescues Bixi and her sister, and brings the criminals to justice.
| Actor | Role |
|---|---|
 Nancy Sit Ka-YinNot listed | Not listed |
 Connie Chan Po-ChuNot listed | Not listed |
 Kwan Tak-HingNot listed | Not listed |
 Yuen Shun-YiNot listed | Not listed |
 Walter Tso Tat-WahNot listed | Not listed |
 Tina TiNot listed | Not listed |
 Lydia Shum Tin-HaNot listed | Not listed |
 Lee Heung-KamNot listed | Not listed |
 Cheng Kwun-MinNot listed | Not listed |
 Helena Law LanNot listed | Not listed |