The Knife

Unscrupulous stockbroker George Howard convinces Robert Sterling that he is having an affair with Robert’s wife Helen aided by Robert’s former flame, Rita Lawson who wants him for herself. Though Robert believes the lie, divorcing Helen and gaining custody of their child, Helen still wants nothing to do with George. Mad with desire he kidnaps her daughter and demands Helen sleep with him for the girl’s safe return. Forced into a corner, Helen agrees but once her daughter is rescued a struggle ensues with George and he is shot dead. Helen, cleared of wrongdoing reunites with Robert who has realized his folly.

Former Viennese orchestra leader Anton von Barwig has been searching for his daughter, taken by his ex-wife, for many years. The search has reduced him to penury since a crooked detective swindled him. One day he meets a young society girl, Helene Stanton, seeking music lessons for her fiancé, Beverly Cruger, and recognizes her as his child. Barwig finally confronts her foster father, who had run away with his wife in Vienna, who pleads with him to stay silent for his daughter’s future. He acquiesces but Helene discovers the relationship and brushes social considerations aside to be reunited with him.

Conchita Cordova sings in the cathedral choir in her village of San Miguelito near the Rio Grande. Millionaire oil man John Rannie, whose oil fields have displaced the peasants, desires Conchita, and when he learns that her fiance, Juan Mendoza, has been employed by Adolf Wylie, a German spy, Rannie threatens to expose Juan unless Conchita gives herself to him.

Serama, the consort of Lucifer, is driven from Paradise by the Archangel Michael, who commands Conscience to enter human souls to judge and punish them. In the main story, society girl Ruth Somers, a reincarnation of Serama, prepares to marry Cecil Brooke, the wealthiest man of her set. Her guardian, Dr. Norton, an incarnation of Lucifer, constantly accompanies her. Ruth is summoned to the Court of Conscience, where the witnesses, Lust, Avarice, Hate, Revenge and Vanity, testify about Ruth's history of seducing and abandoning men. This behavior resulted in the suicide of Madge, the lover of Ned Langley, whom Ruth enthralled and promised to marry, and also the deaths of two rivals for her love. Ruth is ordered back to earth to learn her sentence. When Ned interrupts the wedding, Ruth scorns him and he shoots himself. After Brooke leaves her, the Court dooms Ruth to live with the torment of remembrance. Ruth sends Norton away, and then kneels and repents.

After being disinherited by their wealthy father for their wild and irresponsible ways, two brothers embark on vastly different paths. One turns to crime and the other follows the straight and narrow falling in love along the way. When their paths cross again both find their lives in danger and only one will emerge safely.

Two sisters, Julia Crossland and Evelyn Jefferson, happy lives are thrown into turmoil when a man from their past, Thomas Chadwick reappears unexpectedly. Both had at one time been smitten with Thomas writing indiscreet letters to him. When Chadwick is killed, they fear their secret will be revealed.

When Bob Stratton returns from war in France, he soon discovers his ranch in the hands of a pretty girl, Mary Thorne, who explains that upon her father's death she became the sole owner. Thorne had been the executor of Stratton's will, and thinking that Bob had been killed, he had appropriated the place for himself.

Nekhludoff, a Russian nobleman serving on a jury, discovers that the young girl on trial, Katusha, is someone he once seduced and abandoned and that he himself bears responsibility for reducing her to crime. He sets out to redeem her and himself in the process.

Wealthy New York contractor Wilton Demarest falls victim to the wiles of beautiful adventuress Mazora. Soon, he becomes addicted to drugs, neglects his wife and child, and his business is on the verge of ruin. By chance he meets his double, western mining engineer Martin Stanley. Demarest, half mad due to his drug addiction, conceives the fantastic idea of having Stanley take his place in the world enabling him to indulge in his degraded desires. Stanely, penniless and alone in the world accepts the proposition despite his reservations. Demarest drops into oblivion and Stanley picks up the scattered threads of his life, both in business and at home. The "at home" part is what causes complications.

Loutish Teddy Brant feeling trapped by his marriage and family commitments to the sweet Rose and their infant daughter Helen fakes his suicide and embarks on a dissolute life. Thinking herself free Rose remarries, and time passes contently. Years later, Teddy, now a hopeless derelict, wanders the country straying one night into the waiting room of a train station. He sees a young girl being accosted by an elderly gentleman who tries to entice her home. Teddy thinks nothing of the incident until he finds a purse lying on the seat and learns that the girl is his daughter Helen. Teddy hastens after them and in the ensuing fight, strangles Helen's assailant and then flees. Helen is arrested for the murder but is acquitted when Teddy staggers into the police station and confesses to the crime.

Queen of the serials Pearl White gets herself into plenty of trouble up Klondike way as a young maiden named Tiger's Cub.