After a forward introduces the question of whether women are temperamentally suited for jury duty, Jim O'Neil, a young shipping clerk, is found holding a revolver over his dead employer, Edward Knox. The celebrated novelist Grace Norton, selected to be on the jury at Jim's trial, becomes the first woman juror in New York.

Pursued by two suitors, James Brunton and Bob Standing, Grace chooses James followed by a sumptuous wedding at his family home. Suddenly a shot rings out and James’s father is fatally wounded. Just before dying Mr. Brunton makes James promise not to apprehend the murderer. Later trouble arises when Grace suspects James of an involvement the young Helen. Crushed, Grace leaves home settling in another town. Shortly after James has a car accident and is taken to Grace's nearby house. When Helen and Bob arrive, it is revealed that Helen is James’s sister. Mr. Brunton had abandoned Helen's mother Alice years before and it was Alice who fired the fatal shot. James and Grace are reconciled.