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.
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.
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.
A reporter and a detective team up to solve the murder of a nightclub singer who had been involved in a divorce scandal.
To help secret serviceman Bill Parsons in pursuit of the thieving Benson gang wealthy criminologist Henry Avery sends his assistant Blinky to cover the waterfront while he attends a reception at the home of Mrs. Cornelius Westervelt. At the soiree he meets gang member Alice Carter while also discover the gang’s cache hidden there. Captured Parsons is saved by Blinky, and the pair foil the gang’s attempt to rob Mrs. Westervelt and her guests.
Millionaire Joshua Barker insists that his daughter, Faith, must marry Phil Langhorne, a man that neither likes, and Faith is in love with and eager to marry her childhood sweetheart, John Temple.
Bob Marston, a San Francisco socialite turned amateur detective is assigned to apprehend a gang of bootleggers.
Burke Harlan an artist, saves Anne Warren from auto thieves, but he is wrongfully arrested and accused of stealing her car. The girl's father is a criminologist and has Harlan released into his custody as he would like to try to reform the young man. Harlan finds this highly amusing and goes along with the idea, mainly because it will allow him to be nearer lovely Anne. He does his best at convincing he is a delinquent, however Anne has a beau who is the police commissioner. But the clever Harlan outwits everyone and elopes with Anne before revealing his true identity.
Most of the scenes are laid in a parrot-and-monkey country in South America, a land where "it is always after dinner." The Llano Kid, a Texas bad man, flees there from justice. The consul persuades him to play the long-lost son of a Castilian family, and tattoos a coat of arms on the back of the Kid's hand to make the deception complete. The Kid is taken into the household, trusted and loved by the gladdened mother. For the first time he has a home. The romance develops. And when the time comes to rob and flee he has too much manhood to break the loving mother's heart. The surprise comes when it is revealed that the man the Kid killed in Texas was the real son.
Following his mother's death, John Gregory becomes the "Eagle," a thief determined to get even with the mining company that stole his family's fortune. Breaking into the company’s head office he discovers that another robber has preceded him and killed the night guard. When he is falsely accused, Lucy the girl he loves, discovers a written confession from the real killer just before John is to be hanged and rides wildly to the jail to save his life.
Jim Crosby, the product of a broken home, becomes a gangster and goes to prison. Meanwhile, Ann Payton, an heiress, converts a saloon into a mission. She is engaged to her father's secretary, Temple Vaughn, a gambler. Jim is released from prison and seeks shelter at the mission. Temple becomes indebted to gambler Phil Johnson and is forced to arrange a crooked poker game involving some of his wealthy friends. Jim overhears the plot and, realizing that Temple is Ann's fiancé, robs the poker game and puts a check Temple forged into Temple's own pocket.
From a Montana mining camp, a young man progresses to the society heights of New York, making his mark publicly as a dancer, but secretly as a gentleman burglar.
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.
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.
At the death of Count de Beaulieu, his daughter Jeanne learns that her father had been the arch-criminal known as The Phantom. The only other person who knew her father's identity was his lieutenant, Franz Leroux, who now demands that Jeanne marry him in return for his silence.
Holmes and Watson match wits with an opera star intent on blackmailing a king.
Brothers James and Allen Mornington are both addicted to cocaine and both believe that their addiction is caused by a hereditary failing. James rises to the position of judge, but when Allen is brought into his court on drug charges, James resigns. The two brothers, along with James's daughter, Hilda, then retire to the country to fight their desire for drugs.
A blackmailed ex-thief is executed for a murder he didn't commit.
Nancy Glenn is a pupil in Pop Hogland's school for crooks. When, attired as a boy named "Spider", Nancy fails at her lessons as a pickpocket, Pop decides to pair her with Pliny Drew, a graduate thief and swindler.
The Charlatan