Madame Guérin, who has been suffering from cancer, benefits from a period of remission and she tries to regain health at any price. That is why she decides to consult a healer. But when her friend, also affected by cancer, is saved by an operation, she hesitates between traditional and parallel medicine.
| Actor | Role |
|---|---|
 Jean-Pierre KérienDoctor Galloy | Doctor Galloy |
 Henri RollanProfessor | Professor |
 Suzy PrimMrs. Guérin's friend | Mrs. Guérin's friend |
 Lucienne Le MarchandMrs. Guérin | Mrs. Guérin |
 Louis SeignerDoctor Clarenz | Doctor Clarenz |
 Lucas GridouxHealer | Healer |
 Andrews EngelmannNot listed | Not listed |
 André Le GallNot listed | Not listed |
 Juliette FaberNot listed | Not listed |
 Jacqueline PierreuxNot listed | Not listed |