Case of Conscience (French: Cas de conscience) is a 1939 French drama film directed by Walter Kapps and starring Suzy Prim, Jules Berry and Roger Karl.

[1][2] The film's sets were designed by the art directors Claude Bouxin and Roland Quignon.

A doctor's pioneering research is put at jeopardy as he runs out of money.

When a rich but miserly uncle comes to stay, he suffers a heart attack.

With his uncle's money he is able to complete his research, earning him great success, but filling him with a deep sense of remorse.