A Letter to an Unknown Murderess. Fritz Lang directed The Blue Gardenia, which Charles Hoffman adapted from Vera Caspary’s short story "Gardenia." Anne Baxter, Richard Conte, Ann Sothern, Raymond Burr, and George Reeves lead the cast. Raoul Kraushaar composed the music, and Nicholas Musuraca was in charge of cinematography. After a distressing event, Norah Larkin (Baxter) finds herself intoxicated and vulnerabl…