Passing herself off as a countess, glamorous Lucy Stavrin hobnobs with the rich and famous along the French Riviera. Aware that Lucy is a phony, jewel-thief Malatroff blackmails Lucy into helping him steal the valuable necklace owned by the young wife of phlegmatic American businessman Sylvester Corbett.
| Actor | Role |
|---|---|
 Evelyn BrentLucy Stavrin | Lucy Stavrin |
 Clive BrookHon. Courtenay Parkes | Hon. Courtenay Parkes |
 Paul LukasMalatroff | Malatroff |
 Eugene PalletteSylvester Corbett | Sylvester Corbett |
| HHelen WareCorbett's Wife | Corbett's Wife |
 Virginia BruceEnid Corbett | Enid Corbett |
 Henry WadsworthSandy Weyman | Sandy Weyman |
| CClaud AllisterAlbert Hawkins | Albert Hawkins |
| CChristiane YvesMarie | Marie |
 Morgan FarleyMalatroff's Victim | Malatroff's Victim |
 André CheronButler | Butler |
 Georges RenaventInspector | Inspector |
 Rolfe SedanGendarme | Gendarme |
 Charles SullivanChauffeur | Chauffeur |