Rosie Mendelsohn, the daughter of a kindly Jewish tailor in New York City's East Side ghetto, ends her romance with struggling author George Howard at the behest of her father, who prohibits her marriage to a gentile. George disappears from her life, and Rosie attempts to find him by becoming a private secretary to publisher Joseph Rayberg. She persuades Rayberg to host a contest in which authors submit endings to an unfinished manuscript she claims to have discovered. Rayberg, intent on seducing Rosie, agrees to publish the manuscript only after Rosie promises to have sex him when the contest is over.

Madge Kennedy
as Rosie Mendelsohn / Lady Diantha

John Bowers
as George Howard / Byron Mulvaney

Tully Marshall
as Pap Mendelsohn / Lord Noblebrow

Arthur Edmund Carewe
as Joseph Rayberg / Baron Landsandhome

Abraham Schwartz
as Rabinowitch / The Major Domo