Desc: The Waning Sex: Directed by Robert Z. Leonard. With Norma Shearer, Conrad Nagel, George K. Arthur, Mary McAllister. Nina Duane (Norma Shearer) is a criminal lawyer whose gender is professionally resented by Philip Barry (Conrad Nagel), the District Attorney. She wins acquittal for man-chasing widow Mary Booth (Mary McAllister), then defeats her in romancing the D.A.