A boxer saves a girl from a noble kidnapper.
Chaney plays two roles: mad scientist Arthur Lamb and Lamb's "experiment", known only as the Ape Man. This hideous creature was the result of Lamb's attempts to transplant animal glands into human beings. A lost film.
Arrested for speeding by highway patrolman Bill Rolph (Robert Paige), J.W. Brady (Robert Middlemass), the president of an oil refinery, offers him the assignment to find the culprits who have wrecked his gas stations, hi-jacked his trucks and attempted to blow up his plant.
Babs Van Buren saves her lover from the electric chair and at the same time extricates her older sister, Connie from a trying situation.
When her father goes broke in the stock market, Jane Lee is forced to leave her prestigious boarding school. Glad-handing John Brock, an old friend of Jane's father, arranges for the girl to be hired as his stenographer. But Brock's lecherous ulterior motives become obvious when he locks Jane in the office and tries to rape her. When she manages to escape his advances, Brock vengefully frames the girl on a robbery charge.
A reporter and a detective team up to solve the murder of a nightclub singer who had been involved in a divorce scandal.
Henry Egbert Xerxes' big chance as a cub reporter comes when he is assigned to track down a gang of counterfeiters which gathers regularly at the Red Dog Inn. As he leaves the office, Henry witnesses a girl being dragged into a cab -- the same girl he had seen that morning passing counterfeit money. Henry follows, but on overtaking the cab, he finds it empty. At the Red Dog Inn, he discovers that the girl is being held captive. After a series of rough and tumble adventures with the resident thugs, he and the girl escape, after which he rushes home to write up the story. When it fails to appear in print, Henry storms into the city room only to discover that the entire business was a hoax, intended to test his reporter's instincts.
Captain Timothy 'Two Gun' Nolan is appointed head of the New York detective force, and as his first act, rounds up every criminal in town. Gang boss 'Dapper' Frank Trent stands bail for all of them as independent minor gang-leader. Setting out to get Trent, Nolan moves in on his hideout, assisted by his friend 'Shakespeare.' Trent kills Shakespeare, but makes Nolan believe it is his shot that has done so. Nolan resigns his commission and becomes a drunk. Found unconscious by Trent, he is offered as the pièce de résistance at a gangland banquet which 'The Magpie' attends. A lost film.
Captain Angus Swope (Noab Beery), known as The Black Yankee, skipper of the Golden Bough, treats his crew shamefully and he treats women no better, as evidenced by his handling of a woman he has abducted, together with her baby daughter, Mary (Sally Blaine), from seaman Newman (Willard Robertson). When the woman dies as a result of his cruelty, he brings up Mary as his own daughter.
Priscilla Worth, an innocent country girl, goes to the city to visit her aunt, who has sent for her, thinking that her childlike simplicity will afford a welcome relief to Vincent Morgan, a wealthy bachelor and man-about-town. The plan works, but soon after Vincent and Priscilla's marriage, Vincent, besieged by his friends to return to his gay life and suspicious of his wife's relationship with Durant--an artist who has painted her portrait--yields to temptation.
Bank official Hanlin Davis is ruined in the stock market. Desperate, he fails to rob the bank but kills someone in the attempt. His wife Thora goes to D.A. Hastings to plead for a light sentence which the corrupt Hastings agrees to only if Thora gives herself to him. Upon his release the worthless Davis learning of her sacrifice divorces and turns her into the street. An outcast she becomes "the scarlet woman.” When wealthy crusader Robert Blake institutes an investigation exposing D.A. Hastings he is disbarred and decides to revenge himself upon Thora, considering her the cause of his downfall. Blackmailing unscrupulous society woman, Paula Gordon, he forces her to introduce Thora to Blake as a naïve woman while deceiving Thora that he knows about her past. After they marry Hastings denounces Thora, she flees, returning to her old life, but Blake, seeing her worth seeks her and they reunite.
Wade Hildreth is sent to New York from London to receive a diamond necklace for Lady Gwendolyn from the jeweler Arabin. A gang of crooks led by Pete Fielding, known as "The Shadow," plans to keep Hildreth from going to Arabin's until they have robbed the store. Actress Morn Light, whom the Shadow loves, agrees to entice Hildreth to her apartment to be imprisoned. When she warns Hildreth because she wants to avenge her father's death, which was caused by the Shadow, the Shadow overhears and captures them both.
Edith Sturgis, the daughter of a judge, returns from studies abroad to find her widowed father remarried. The new Mrs. Sturgis does not reveal that she has a son Dick, once unjustly jailed by Judge Sturgis, but now working as a reporter while still maintaining an association with the Brownlow gang. Quarrelling with her stepmother, Edith leaves home, meets Dick and falls in love.
In Dijon, Inspector Hanaud investigates Betty Harlowe after her uncle, Boris Waberski, accuses her of poisoning her wealthy aunt for an inheritance. While an initial autopsy finds nothing, Hanaud discovers the use of Strophanthus Hispidus—a rare, undetectable poison applied via an antique arrow. Amidst a flurry of "poison pen" letters and deception, Hanaud proves the murder occurred despite the lack of conventional medical evidence.
A man tries to burgle his own safe on the same night that a professional criminal attempts it.
Wealthy spinster, Rachel Innes rents a country house with her niece and nephew for the summer, only for a series of strange occurrences and a murder at the house's circular staircase to lead to shocking revelations about the home's owner and the family secrets within the house.
When Harlan Carr inherited his Uncle Ebenezer's "Jack-O Lantern" house and too his bride there to live, he found himself the unwilling host of a score of hungry relatives within a week. Soon, strange things began to happen. A black cat made the house his headquarters, unexplained sounds could be heard and a shadowy figure floated through the halls at night.
Jack Lane (William Stowell) has made an invention for photographing wild animals. It consists of a camera with a trigger -- when the trigger is stepped on by a passing animal, a flash goes off and the camera shoots the picture. Lane goes up to the mountains to try out his new contraption. When a recluse refuses to let him spend the night in his cabin, Lane goes to sleep out of doors, with the camera set up near by. In the middle of the night, he is awakened by the flash and the sound of gunshots. Trekking back to his own cabin the next day, he develops the picture, which is of a girl holding a rifle. He returns to the recluse's cabin where he is arrested for murder.
After his wife has run off with another man, New Yorker Bide Bennington decides to stay in Europe. After hearing of his wife's death years later, he returns home but finds it lonely there and heads West. While he is gone his house is robbed, and the leader of the crooks, Richard Glendo, leaves Bennington's coat and identification on an East River pier. The newspapers pick up on this and announce Bennington's "suicide." Since he is now officially deceased, Bennington decides to start life all over again -- but first he must foil a scheme by a gang of con artists, who have forced pretty Constance Brent to pose as Bennington's widow so that they can lay claim to his estate.
Lois Fox, upon whose shoulder is branded a Chinese idiograph resembling the letters "A. Y.," is rescued from a gang of Chinese ruffians by Brice Ferris. His servant Ming, in attempting to steal from her finger a ring that bears a mysterious green seal, is killed, and soon afterward a stranger named Strang arrives, also in search of the girl. Despite Brice's efforts to protect her, Lois is abducted and taken to the headquarters of Lao Wing, the leader of a secret Chinese society known as the Tong.