My Sin is a 1931 American pre-Code drama film directed by George Abbott, and written by Abbott, Owen Davis, Adelaide Heilbron. It was adapted from the play, Her Past, written by Frederick J. Jackson. The film stars Tallulah Bankhead, Fredric March, Harry Davenport, Scott Kolk, and Lily Cahill. The film was released on October 3, 1931, by Paramount Pictures.

Plot

In Panama, infamous nightclub hostess Carlotta (Tallulah Bankhead) kills, in a struggle, a man in self-defence and is put on trial for murder. Her defence counsel is Dick Grady (Fredric March), a lawyer who has become an alcoholic. When he proves Carlotta's innocence, however, Dick regains respect and new employment through Roger Metcalf (Harry Davenport). He also manages to save Carlotta from committing suicide. He lends her money, and they both dream up a new identity for her as "Ann Trevor," and she moves to New York. Through various letters and repayment checks, Dick learns that "Ann Trevor" is happy and successful and he soon realizes he is in love with her.