The Guilt of Janet Ames is a 1947 film starring Rosalind Russell and Melvyn Douglas. Also in this movie are Sid Caesar, Nina Foch and Hugh Beaumont.
Youtube has it online divided into 9 sections. Part 1:
part 2, part 3, part 4, part 5, part 6, part 7, part 8, part 9
The New York Times says what it lacks "in large doses is dramatic interest, and there isn't much the principals, Rosalind Russell and Melvyn Douglas, can do about that." TCM has an overview.