Following her father's advice, Hélène Haviland (Sandra Milovanoff) accepts the marriage proposal of Fellaire de Sizac (Abel Tarride). Later she finds Dr. Groult (Henri Fabert), one of their friends, trying to kill her husband by poisoning slowly over a long period of time. It's painful but she keeps silence...
| Actor | Role |
|---|---|
 Thomy BourdelleDr. René Longuemarre | Dr. René Longuemarre |
 Claude MérelleJocaste | Jocaste |
 Gabriel SignoretMartin Haviland | Martin Haviland |
 Abel TarrideFellaire de Sizac | Fellaire de Sizac |
 Simone MareuilMaîtresse de Fellaire de Sizac | Maîtresse de Fellaire de Sizac |
| SSandra MilovanoffHélène Haviland | Hélène Haviland |