Prosperous architect David Hunter, lives with his wife Evelyn, who loves gambling and admiration, as well as his small daughter Dora, and his sister-in-law Ruth. When Evelyn tells her husband she owes $10,000 in bridge losses, she promises not to gamble or see her lover, Stephen Dabney, again if he will pay the debt. Stephen's friend, Moira Lamson, however, entices her to the country club for one last game. David and Ruth, worried by her prolonged absence, go to the club where they find her in Stephen's arms. Evelyn accuses her sister of spying on her and demands a divorce from her husband. Ruth, weary of her sister's frailties, moves out of the household and takes up nursing. Evelyn's health suffers from the strain, and now with David and Ruth gone, she is ill and alone. David and Ruth take pity on her and return. A smarter Evelyn is reunited with David.

Captain "Wolf" Larsen, the absolute master of a seal schooner, is a mystic and philosopher, though he rules his men with an iron hand. On a ferry going from San Francisco to Oakland, Van Weyden, a critic, and Maud Brewster, a novelist, meet in masquerade costumes and are forced overboard when their boat collides with a steamer. Humphrey, then Maud, are picked up by Larsen's crew. Because of her costume, Maud is taken for a boy and placed in the custody of Mugridge, the cook, who attempts to attack her upon discovering her identity. Larsen takes her under his protection and decides to marry her; but as the ceremony begins, the crew mutinies, and Larsen is stricken with blindness as he faces the rebels. The ship is set afire, and though Humphrey and Maud are rescued by another steamer, Larsen, deserted by his crew, refuses to quit his ship and is enveloped in flames.

Prosecutor Olsen's lover, the singer-songwriter Betsy, leaves him for a new passion. And he, speaking in court as a prosecutor, remains deaf to the dictates of feelings, a ruthless servant of the harsh Law. Some time later, Betsy kills her new lover in a fit of jealousy; Olsen, who retained his feelings, nevertheless becomes her accuser at the trial. He seeks the condemnation of Betsy, but comes to the realization that he lived unrighteously, allowing himself to be judged, becoming a servant of Themis. Exit in the classic tradition of the great mute: Olsen commits suicide.

Irving Robertson, a successful playwright, has just received a message from out of town to witness the initial performance of one of his plays. As he is about to leave, Henderson, the manager, calls to pay a sum due him for royalties. At the same time, Frank Wilson, a friend of the family, drops in.

Sure-Fire Flint, an energetic chap just returned from wartime military service, meets June De Lanni, the girl of his dreams, while working as a cabdriver and busboy. Her father gives Flint a job in his factory, but Dipley Poole, who hoped to marry June, becomes jealous of Flint's success and attempts to rob the company safe. June is trapped in the safe, but after a series of adventures, Flint arrives in time to rescue her.

Andrews, a former shipping clerk, has amassed a fortune in cocaine and therefore discourages his daughter May's romance with Joe, a policeman. Andrews prefers socialite Roger Hastings, whom May marries but soon discovers is a drug addict. While May is recovering from a nervous breakdown precipitated by the knowledge of Roger's addiction, he slips cocaine into her medication. Soon she also is addicted, a fact which Roger delightedly reports to Andrews. Andrews then commits May to a sanitarium and Roger becomes a procurer for a gang of white slavers. When the gang abducts his sister Julia and takes her to Roger's brothel, he turns against them. Julia is released, and after many complications, Roger returns to Andrews' house and, during a struggle, sets the house on fire, killing them both.

Corinne d'Alys (Daniels) achieves sudden success on the stage and among her many admirers is noted artist Robert Townsend (Menjou). Robert is married to Elsa (Williams), the sister of John Elliott (Stone), the producer responsible for Corinne's rise to fame. The young woman's head is turned by the praise she receives and, despite John's warning against Robert, she permits the latter to paint her portrait and pay her a good deal of attention. John himself loves Corinne and believes that wisdom will come to her with time.

A DA's son gets involved in a drug-related murder, and it's up to his father and sister to get him out.

Lieutenant Curren of the regular army, is assaulted by Private Roy, of his company, and the latter is sent to the military prison. Known as Convict 125, Roy serves a year of his time, then his desire for revenge turns to repentance and he apologizes to Curren. A pardon is secured and Roy reinstated in the service. War breaks out, and Roy saves the Lieutenant's life on the field of battle but loses his own in doing so. From a locket found on Roy, Curren's wife identifies him as her long-lost brother

Helene Palmer and her husband Orrin have grown apart, and she becomes infatuated with bachelor Edward Wadsworth. With the outbreak of World War I, Orrin and Edward enlist, while Helene works as a Red Cross nurse in a small French town. Edward is wounded on a dangerous scouting mission near the town and Orrin carries him to safety. The enemy invades during the night, and Orrin rescues Helene as she is about to be overpowered by a German officer. The dying Edward, morally strengthened by his experience as a soldier, encourages the couple to reunite. Soon after, peace is declared.

John Dale, a lawyer, who, after a trip to the Middle East, is asked by his niece why he's never married, leading him to recount a tale of a yachting party and a love affair.

Ben Jordan runs away after accidentally setting fire to a barn in his small New England community. He returns when his mother dies to find that she has left everything to her ward, Jane Crosby.