In Corsica, Marianna Paoli's brother is killed by an Englishman whose identity is unknown to her. She swears vengeance and tracks the killer to Monte Carlo. There she falls in love with a handsome young officer, only to discover that he is the murderer she has sworn to punish.
| Actor | Role |
|---|---|
 Pola NegriMarianna Paoli | Marianna Paoli |
 Emil JanningsTomasso | Tomasso |
 Harry LiedtkeEdwin Alcott | Edwin Alcott |
 Margarete KupferRuth's Tante Lady Crawford | Ruth's Tante Lady Crawford |
 Käthe DorschMiss Ruth Alcott | Miss Ruth Alcott |
 Magnus StifterGraf Danella | Graf Danella |
| EEmil BirronEnglischer Offizier | Englischer Offizier |