Dr. Grant, who runs the leper colony, is in love with Myra Hamilton. However, she marries Harry Elliot a man Grant warns her against. Myra and Harry visit Grant's laboratory, where she witnesses a vivisection experiment. The film explores the emotional conflicts arising from this situation.
| Actor | Role |
|---|---|
 Franklin RitchieDr. Stephen Grant | Dr. Stephen Grant |
 Winifred GreenwoodMyra Hamilton | Myra Hamilton |
 Roy StewartHarry Elliot | Harry Elliot |