![](https://image.tmdb.org/t/p/w92/urUy4jYuRs53WSmE0t0BivUSQjC.jpg)
A medical researcher is sent to a plague outbreak, where he has to decide priorities for the use of a vaccine.
Ronald Colman,
Helen Hayes,
Richard Bennett,
A.E. Anson,
Clarence Brooks,
Alec B. Francis,
Claude King
Added on Amazon Prime 2023-05-23.