Nina Duane, a pretty young criminal lawyer, is resented professionally by Philip Barry, a district attorney, but he invites her to a dinner party. Mary Booth, a simpering young widow, makes a play for Philip, much to Nina's amusement; and later, at his summer house, Nina imitates Mary's tricks for Philip and answers his declaration that if he wins the case in which they are opposed, he may dictate his own marriage terms. Nina wins the case, but Mary insists on inviting Philip to dinner; out of curiosity, Nina strolls over to watch the proceedings. Spilling coffee on Philip's pants, Mary insists on cleaning them; he tries to escape but Mary "faints" to delay him. Finally, he locks her in and escapes in the pants of her younger brother, as Nina has hidden his own. Nina exposes Mary's scheming and saves her younger brother from a compromising situation. Philip forgives Nina, and they are happily united.