Desc: The Sporting Duchess: Directed by Barry O'Neil. With Rose Coghlan, Ethel Clayton, Betty Brice, Frankie Mann. Lord Desborough and Captain Mostyn, both officers in the same regiment, are suitors for the hand of Muriel. Desborough wins and marries her, and thereby incurs the everlasting enmity of his rival. Their regiment is ordered to India, where Desborough falls under the wiles of an adventuress named Vivian Darville. His flirtation is duly reported to the absent wife by Mostyn, and the resultant future trouble between husband and wife, is fanned into flame by the jealousy of Rupert Lee, a young officer whom Vivian has driven to drink by her broken promises. On the return of the regiment to England the Desboroughs open their magnificent home, Desborough Hall, where in spite of the fact that Desborough is on the verge of bankruptcy, expensive entertainments are given under the patronage of the Countess, known as "The Sporting Duchess," because her aspirations are in the direction of hunting, horse racing and other phases of sporting life, rather than the less exciting functions of society. She is a woman of great wealth, keeps a large racing stable, and her liking for Desborough causes her to back his horse, Clipstone, for the Derby, as against King of Trumps, who is Mostyn's entry. Deciding to take unto herself a young husband, she selects Dr. Streatfield, a young army surgeon of fickle temperament, who has become engaged to Vivian Darville on the voyage home from England, and whom he introduces into the Desborough circle, only to find that his true affinity is Annette, daughter of Colonel Donnelly. Vivian's interest, however, goes no further than to be introduced into society through her engagement to Streatfield, and once under the Desborough roof, she begins to aid the villainous Mostyn in effecting a separation between the Desboroughs. This will open the way to Mostyn's attentions to Muriel, and at the same time secure revenge for Desborough's casting her off in India. But there is in the household, as nurse for the Desborough heir, Harold, Mary Aylmer, daughter of Desborough's stable trainer, whom Mostyn has betrayed under promise of marriage. She exacts fulfillment of that promise, and the plotters decide to remove her from the field of action at once. Mary reveals her condition to Muriel, who consults Desborough, and he writes her a letter stating that he will provide for her future, but cannot, of course, retain her in his household as preceptress to his own son. At the same time he also writes a letter to Vivian Darville, asking that their former relations be forgotten, and that she no longer should remain in his home, to disturb the restored tender relations between his wife and him. Mary shows the Desborough letter to Mostyn, who promises to do what he can for her in a secret way, at the same time retaining the letter. Going with it to Vivian, she shows him the letter she has received, and the method of parting the Desboroughs is at once revealed. The headings of both letters are torn away, substituting for each other, and two letters are the result, which furnish evidence of Desborough's guilt both with Mary and Vivian. Muriel already prepared by Mostyn for certain compromising disclosures, is shown the letter, believes that her husband is doubly false to her and accepts Mostyn's offer to act as her escort to London, followed by the irate husband. Mostyn takes Muriel to an out-of-the-way inn, where his perfidy is revealed, for she now discovers that his only motive in removing her from her home was to further his own evil designs. She tries to escape from her prison, and a struggle between them is interrupted by Desborough, who administers a severe beating to Mostyn, and informs Muriel that he will at once begin an action for separation. This action results in a sweeping verdict for Desborough. In spite of the earnest efforts of "The Sporting Duchess" and other good friends, and he is given the custody of the child. Harold, a heart-breaking interview taking place in the court chambers. Following his event the affairs of Desborough grow from bad to worse, and even his stable is to be sold. Including the great Clipstone, favorite for the Derby. Believing that Desborough is the betrayer of his daughter, the faithful trainer, Aylmer, deserts him, taking with him Dick Hammond, the lover of Mary, who was to be the mount for Clipstone. The days of sale for the Desborough stable is announced, and to save for Desborough his one hope to recoup his shattered fortunes, his friends decide to raise a fund for the purchase of Clipstone. But their efforts are unavailing, the sum subscribed is not sufficient, and "The Sporting Duchess" is appealed to by Doctor Streatfield and Annette Donnelly to buy the horse herself. Replying that she buys expensive horses only for her husband, the young people magnanimously decide to break the engagement of marriage between them, and the doctor becomes the affianced husband of the Duchess. At the sale the Duchess buys Clipstone; he wins the Derby and nothing is left for Mostyn but to leave the array and retire into solitude with his fellow plotter, Vivian Darville. The unfortunate Rupert Lee, In the cottage where he has been living with Vivian, overhears the interview between Mostyn and Vivian and determines to revenge himself by making atonement for his share in the plots against the Desboroughs, which is done by producing the two Desborough letters with the proper headings supplied. Accordingly the Desboroughs are reunited, the erring Mary is forgiven by her faithful lover, and "The Sporting Duchess," deciding that it is best to be the doctor's mother instead of his wife, restores him to the unhappy Annette Donnelly.