Three tales about a morally-questionable doctor, a quarantined relationship, and a rich businessman sent spiraling into debt due to the SARS outbreak. Each person is "affected" by SARS in their own unique way.
| Actor | Role |
|---|---|
 Eric Tsang Chi-WaiBoss Lam Hung | Boss Lam Hung |
 Chin Ka-LokPong | Pong |
 Kristy Yang GongruViola Lam | Viola Lam |
 Patrick TamDr. Chen | Dr. Chen |
 Edwin SiuHenry Lee | Henry Lee |
 Monica Lo Suk-YeeLing | Ling |
| SSerena PoWendy | Wendy |
 Amanda Lee Wai-ManWendy's boss | Wendy's boss |
 Jerry Lamb Hiu-FungHung's assistant | Hung's assistant |
 Susan Tse Suet-SumViola's mom | Viola's mom |
 Felix Wong Yat-WahHospital superintendant | Hospital superintendant |
 Gabriel HarrisonDr. Li | Dr. Li |
| NNelson Cheung Hok-YunSARS Patient | SARS Patient |
 Lo Hoi-PangNot listed | Not listed |
 Sharon Chan Man-ChiNot listed | Not listed |
 Zuki Lee Si-PuiNot listed | Not listed |
 Lee Ji-KeiNot listed | Not listed |