A letter is addressed to three wives from their "best friend" Addie Ross, announcing that she is running away with one of their husbands - but she does not say which one.
A Letter to Three Wives is a 1949 American romantic drama film directed by Joseph L. Mankiewicz and starring Jeanne Crain, Linda Darnell and Ann Sothern. The film was adapted by Vera Caspary and written for the screen by Mankiewicz from A Letter to Five Wives, a story by John Klempner that appeared in Cosmopolitan, based on Klempner's 1945 novel.