A porn star and a resident of the New Territories use bottles of Viagara to help their respective performance problems.
| Actor | Role |
|---|---|
 Eric Tsang Chi-WaiWai | Wai |
 Anthony Wong Chau-SangChau | Chau |
 Angie Cheung Wai-YeeBoBo | BoBo |
 Kingdom Yuen King-TanChau's Wife | Chau's Wife |
 Pinky Cheung Man-ChiMan Man | Man Man |
 Spencer Lam Seung-YiMr. Wong | Mr. Wong |
 Helena Law LanMrs. Wong | Mrs. Wong |
 Lee Siu-KayKei | Kei |
 Celine Ma Tai-LoWai's Wife | Wai's Wife |
 Lam SuetNot listed | Not listed |
 Sunny Luk Kim-ChingNot listed | Not listed |
 Stephen Ho Kai-NamNot listed | Not listed |
 Gary Mak Wing-LunNot listed | Not listed |