Adele (Compson) was once the toast of Paris with her performances of DuBarry. But the years have passed; now older (and played by Yorke), she can no longer find work. A young neighbor named Marie (Compson again) sees to her needs, and Adele, suddenly noting the resemblance to her younger self, persuades her to pretend to be her, explaining that plastic surgery has made her look youthful again. The ruse works, and coached by Adele, Marie stars in a revival of "DuBarry" and Paris is enchanted anew. Unfortunately, this new-found success creates a whole new set of problems that will affect both of them as well as the young man (Rawlinson) who's wooing her.
The plot is almost identical in Fedora, made 52 years later by Billy Wilder but based on a short story by Tom Tryon from his collection Crowned Heads.
^Catalog of Holdings The American Film Institute Collection and The United Artists Collection at the Library of Congress, c.1978, p. 14, The American Film Institute.