Conn, the Shaughraun

When doctors fail to cure the young and beautiful Claire Raven, who for inexplicable reasons seems to have fallen under a spell, Professor Mors, an expert in the field of hypnosis, is called in to help.

Lisetta, the daughter of a fisherman, lives with her father and brother on the island of Capri. When Serrani, an Italian who has grown wealthy in New York, visits the island, he induces Lisetta to accompany him to America. There he abandons her and she becomes a dancer in an underworld café owned by "Dago" Joe, where she meets the artist Stanford Graham, who employs her as a model. Meanwhile, Lisetta's brother Domenic comes to New York to avenge his sister's dishonor.

After his defeat at the hands of "Spider" Flynn, the welterweight champion of Europe, boxer Jimmie Dolan and his trainer, Thomas Jefferson Jones, leave for a principality near Paris. Having lost all their money on the fight, Jimmie accepts Count Conrad's offer to impersonate Prince Frederick in return for a large sum of money.

When Mary and Fannie Graham, daughters of a good mother but a father with criminal instincts, are left motherless, Mary flees from her unhappy surroundings while Fannie, inheriting her father's disposition, remains and is raised as a thief.

Phyllis Narcissa, an underpaid children's librarian, eagerly accepts a dinner invitation from Horace de Guenther, one of her patrons, and happily entertains his invalid wife. Later, Mrs. de Guenther encourages Phyllis to meet with Mrs. Harrington, a dying rich woman whose son Allan, once a vigorous young man, was paralyzed in an auto accident. When Mrs. Harrington proposes to the librarian that she marry and take care of Allan in exchange for his wealth, Phyllis reluctantly consents. While struggling to cheer up the eternally gloomy Allan, Phyllis welcomes the visits of his friend, a doctor who informs her that her husband's paralysis may be psychosomatic.

When young inventor Bob Moore fails in his efforts to provide his father, a safe manufacturer, with a lock that is burglar proof, he contacts The "Eel," the most talented safecracker in the city, to offer him a job in his factory. The Eel, deciding to go straight, accepts the offer, but when he later learns that Irene Hardin has been given a valuable necklace by her father, The Eel plans one last job to secure Irene's pearls.

Mrs. Standing, an old-fashioned country mother, sacrifices to put her son John through college so that he might have a better life. Upon completing school, John goes to the city where his financial success blinds him to the basic values taught to him by his mother.

During a raging storm, a baby is washed up on shore on an island in Greece and is adopted by the wealthy Stanhopes, who name her Lorelei. Eighteen years later, Lorelei, now a woman, invites her school friends to spend their vacation at her villa. One of her guests, Julie, is insanely jealous of Lorelei. One day Gerald Waldron, a disenchanted society fop, sails by on his yacht, accompanied by his social-climbing friend, Hartley Royce. Seeing Lorelei and her friends swimming, they decide to go ashore. Both Gerald and Hartley fall in love with Lorelei, and Julie rages, finding herself relegated to Hartley. Together Hartley and Julie plot to separate the lovers.

Newly elected police court judge John Fairbrother is impassioned when it comes to the laws affecting the dives and cabarets of the city, and promises equal justice for all.

Framed by police inspector Finch and his managing editor, R. H. Steadman, to cover up their own crooked work, reporter John Mull languishes in prison until he escapes, determined to wreak vengeance.

A poor shopgirl is offered a "good time" for a week by the son of her employer. She accepts, but the offer is misunderstood by her brother, who informs the girl's parents of her "fling."

When Marie Louise, the daughter of the town factor, returns home from school, Julio Sandoval, a reckless young half-breed ruled by his animal instincts, develops a passion for the girl, even though she is engaged to Captain McKeever of the mounted police. Meeting Marie when she is alone in the woods one day, the half-breed carries her to his cabin on the mountain top where he collapses from an attack of mountain fever brought on by overexertion.

Louis and August Siever, the twins sons of a German father and American mother, are traveling in Europe when war breaks out. August joins the Kaiser's army, but Louis, a supporter of the United States, is practically made a prisoner in Berlin for a year while he tries to prove his American citizenship. After a violent confrontation with Louis, August steals his brother's passport and leaves for New York with Gerda Anderson, a German spy.

After Fred, an orphan raised by his wealthy Uncle Oliver marries Clara over his uncle's objections, the two men become estranged. When Fred and Clara's child Paul is six years old, Fred insists that his uncle pay them a visit over Christmas. Uncle Oliver, a very lonely old man, begrudgingly accepts but refuses to behave amicably towards Clara or Paul.

When Donald Bayne, known in the North as The Wolf, loses his cabin to Steve Nolan in a backwoods court, he threatens and thrashes the new owner, then leaves him to tend to his traps. Upon his return, he discovers that Nolan has been killed in a shooting accident and that Bess Nolan, his niece, has moved into the cabin with Rose, her sister's child. Unable to evict her, The Wolf camps out next to the cabin, but soon realizes that this act has compromised her honor in the town. To correct the situation, he forces her into marriage, but she maintains a safe distance from him. When Bess's sister and "Snaky" Burns, her brother-in-law, kidnap Rose for use in their criminal activities, Bess implores Donald to intervene.

Robert "Bob" Wesley horrifies his father, Admiral John Wesley of the Naval Advisory Board, by failing his examination at the Annapolis naval academy. Bob seizes the chance to redeem himself, however, when he overhears Hanson, the butler, plotting with German agent Count Von Ornstorff to deliver his father's plans for the Atlantic coastal defenses to German Baroness Von Hulda. In Baltimore, Bob meets the baroness' ship and, with the aid of an old college professor, makes her his prisoner. Having impersonated a woman in the college play, Bob disguises himself as the baroness, rendezvous with the spies, and obtains the plans.

Dick Evans is the corrupt boss of a rough-and-tumble munitions town called Powderville. He hires his friend, Jack Ripley, to establish a newspaper, intending merely to further his own financial ambitions; however, Jack envisions The Trumpet as an instrument of good and soon persuades Dick to clean up Powderville.

Professor Barclay travels with the young Dorian Holbein to the big city to oversee his violinist education.

In Paris an Apache dancer weds his ex-fiancée's sister for revenge but learns to love.

Based on the Rupert Hughes novel, this film concerns the German atrocities committed in Belgium at the beginning of the Great War.