Hoping to reconcile her divorced parents, Norris Gradley remains with her father, Giles, after he marries another woman. The new Mrs. Gradley snubs and mistreats Norris, who earns money by disguising herself as a boy and playing the violin at dances. Claude Wolcott, employed by Giles to drill oil wells, falls in love with Norris.
William Armstrong, an American whose family is from France, inherits an iron mine in France. With his sister Betty, he travels to France to take over the business. In the village near the mine lives Claire, the daughter of a wealthy family, who is engaged to the scheming Duc de Bligny. When Claire's family loses all their money, the Duc dumps her for the daughter of a wealthy manufacturer. Armstrong and his sister find themselves caught up in this intrigue, which becomes more complicated when Armstrong falls for Claire.
Frenchman is engaged to marry South American heiress but a fortune-hunting friend disrupts the romance and marries the girl himself. She later realizes her mistake after her no-good husband has frittered away most of her fortune and she turns back to her first love.
When jealousy and envy lead Mary Vantyne to make a foolish decision and commit an impulsive act she sets off a series of events that nearly bring heartbreak to all those in her circle.
Page Emlyn travels with his friend Jim Calvert to the Calvert family home. It doesn't turn out well: Calvert's fiancée breaks up with him and he later falls off a cliff to his death. His friend Emlyn was with him but was so drunk he doesn't remember anything that happened that night, and before long Emlyn is accused of pushing his friend off the cliff and tried for the murder.
Don Sebastian, Portuguese Premier, sets a price on the head of royalist Ricardo Madons. Madons is in love with actress Lola Montez, whom Sebastian also adores. Madons abducts Lola and compels her to wed him, but then does not hold her to the compact. Lola, who is really in love with him, repents having sent for assistance when she was taken. When Sebastian's soldiers arrive, Lola is nearly slain when she stops a bullet meant for Madons. She escapes with Madons. The couple find happiness across the border.
John Merrick and Vilma Walden, who fall in love at an embassy fundraiser in Vienna before World War I. Vilma's brother, Carl, who is a war veteran, poses as a rival for Vilma's affections. When war erupts, John requests a transfer to the Italian front, where he confronts Carl, who had borrowed his aircraft for a mission. John is devastated to learn the pilot he downed was actually Carl, leading him to announce he will no longer kill.
When jockey Jimmie Driscoll, responsible for making Jim Richardson's horses winners, is fired for being too heavy, he goes to the home of the late Judge Bell, the father of local horse racing. Jimmy is in love with the Judge's daughter Joy, who was left nearly penniless when her father died. Joy's brother Harry writes to her pleading that because he desperately needs money, she should enter the aging Vagabond, the last of the Bell racehorses, in the upcoming annual event. Convinced by crooked bookmaker Spike Bradley that Vagabond will win at twenty-to-one odds, Harry mortgages his half of the house for gambling money. Jimmie discovers that although Vagabond runs horribly on normal turf, she is a "mudder," meaning that she goes into a wild dash on wet ground. After Jimmie and Joy pray for rain, Bradley, learning of Vagabond's condition, threatens the jockey, but Jimmie, riding Vagabond himself in in the rain, wins the race and afterward, Joy's love.
Helene Blair is the wife of a prominent businessman who neglects to give her much attention. He is thoroughly engrossed in business affairs. A day comes when she meets Duke Tremaine, clubman, man-about-town, and social parasite. And taking advantage of her husband's absence he attempts to assert his personality upon her impressionable heart. The result is society starts to gossip with the husband the last to learn of the affair. He loses faith in his wife for a time, but she shows herself eventually as completely misunderstood. After a brief separation Blair learns that Helene is above reproach. So a reconciliation takes place, but not until the trespasser is punished.
Paul Bonard an artist, loses his memory when he receives a blow on the head from one of two apaches fighting over Wildcat, a sultry stepper in a cafe. He becomes an apache himself, falls in love with Wildcat and paints her portrait--his masterpiece. Wildcat learns Paul's identity and restores him to his family, though realizing that she will lose him. Surgery restores Paul's memory, but some subconscious force guides him back to the cafe and Wildcat's love.
Former miner Daniel Slade becomes a wealthy investor and runs for political office, ultimately becoming the governor of his state. Daniel's wife, Mary, is unable to adjust to a life in high society, often embarrassing him in the presence of his colleagues. Temptation arrives in the form of Katherine Strickland, the daughter of a prominent senator, who takes Daniel away from his old-fashioned wife. However, Daniel eventually realizes how much he loves Mary, and he returns to her.
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.
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.
Rich wastrel Baron Chevrial fritters his days and nights away pursuing a series of young lovelies and playing with their affections. He is smitten with the charms of Rosa, dancer of the Opera Comique, but marries the prominent Therese Beauchamp while still remaining involved with Rosa. Eventually a new woman enters his life and for a time he is oblivious to everything else until Rosa reenters his sphere.
Orphaned Gertrude "Gertie" Flint is rescued by lamplighter, Trueman Flint, who raises her with faith and virtue until she grows into a moral woman and finds love with a childhood friend, overcoming hardships like her blind mother's separation from her and near-fatal fire incidents, ultimately leading to happy reunions and an engagement.
A group of Canadian Royal Mounted Police officers arrive home after serving overseas with the Allied Army. After enjoying a birthday banquet for the aged Major Manners amid much singing and revelry, Inspector Turner reveals suspicions about a new recruit, John Smith, whom he knows to be using a pseudonym and whose war record contains something potentially damaging.
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.
A Parisian doctor, infatuated with the wife of his benefactor, drugs and kidnaps her, and tries to convince the husband that she is dead. This film is lost.
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.
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.