Old Silas Blackburn, a wealthy recluse, lives alone with his butler and his ward Katherine. One night, Katherine discovers Silas murdered in the room where three generations of Blackburns have mysteriously died. Silas' grandson Robert, whom Katherine loves, comes to visit the next day, suffering from amnesia.
A $5,000 wager is made between two prominent jewelers, Mr. Thorpe and Mr. Chandler, as to whether their most valuable jewels can be stolen. Thorpe, seeking to stack the odds in his favor, asks Police Commissioner James Stone, a business crony, to enlist the help of Diamond Daisy, a jewel thief who is trying to go straight. Posing as a rich heiress, she asks Mr. Thorpe to accompany her to show her father an expensive item of jewelry. Instead, Mr. Thorpe is detained in an insane asylum by a doctor who has been led to believe that Thorpe is Daisy's insane husband. Daisy absconds with the jewels, but a vindictive detective, who has been following Daisy, thinks the heist is for real and tries to arrest her. Eventually the commissioner intervenes and all ends well.
Broadway star Mona Mainard retires from the stage for marriage to rising attorney John Norton and watches his career climb. Over time she becomes concerned with his at times unscrupulous ways of getting convictions. When her brother is accused of murder Norton refuses to give up the case despite being aware of his innocence because a victory could land him the governorship. Mona takes extreme steps to bring him to his senses and exonerate her brother.
John Hampstead gives up his career as an actor and his actress sweetheart, Marian Dounay, to become a minister in a western town. Marian appears, and failing to win him back she tries to ruin his reputation. Hampstead is accused of stealing some jewelry though actually he is protecting the scapegrace brother of his current sweetheart, Bessie.
A young woman agrees to marry the son of a well-known man in order to get a chance to take revenge on her new father-in-law, who she believes framed her own father who is now in prison.
A man receives a mysterious email appearing to be from his wife, who was murdered years earlier. As he frantically tries to find out whether she's alive, he finds himself being implicated in her death.
A murderer is driven slowly insane by a sequence of coincidences and suggestive events which will not allow him to escape his own sense of guilt for his crime.
The daughter of a famous painter fleeing thieves who believe she knows where one of her father's original paintings is kept, flees and hides out at the residence of a pair of avowed women hating bachelors.
Bill Harvey discovers a lost mine, rich with gold. Geraldine "Jerry" Howard has the claim to it left her by her father. Bill tells her that the death of the claimant, her father, makes a claim void. Infuriated, she goes to John Kenton, a crooked lawyer, for aid. Kenton sees an opportunity for wealth if he marries Geraldine, but Bill tells her that Kenton is only after her money. She gets more infuriated. While Bill and a posse are raiding an immoral cabaret, Kenton raids the Paradise freight depot to steal the money. The depot catches fire and Kenton shoots his henchman to save himself. The town and Geraldine think Kenton is a hero. It is up to Bill to prove otherwise.
An idealistic sea captain, Dick Carson (Conway Tearle), is wounded by revenue officers while smuggling arms to a South American country. He finds aid and refuge at the home of Dr. Jordan (J. Barney Sherry) whose young wife, Dorothy (Doris Kenyon), is being courted by Andrews (Crauford Kent), who kills the doctor in a quarrel. To avoid the revenue officers, Carson takes them aboard his ship and sets sail for the Far East. He and Dorothy fall in love but, first, he must deal with a mutiny on his ship.
A casino security officer investigates the rape and murder of her teenage daughter.
Allayne Norman's husband Bruce is a gambler and drunkard who kills her artist cousin in an argument. Bruce flees the studio with Allayne and their son, and places his identifying documents in the pockets of an amnesiac man. To avoid the consequences of his actions, Allayne identifies the man as her husband. When Bruce returns, he tries to kill the man but is shot instead. The man regains his memory and is cleared of wrongdoing.
Doris Moore is a country girl who is conned by two crooks, Harry Leland and Pop Clark. They convince the naive girl to come with them to New York City and play the badger game on William Lake. But the intervention of Kate Fallon, who runs the gang's New York home, saves the innocent and traps the guilty. Instead of tricking Lake, Doris marries him.
Richard Castleman, master of Winnecrest Hall in Louisiana, goes on a sea voyage recommended by his cousin and physician, Harry Chilton, who thereupon begins romancing Castleman's fiancée, Jeanne Lamont. When word arrives of Castleman's death, Chilton prepares to usurp the fortune and property of the dead man. Danny Rowland, who is found wounded by two wandering crooks, Dominie and The Squirrel, opportunely arrives at the estate seeking food and rest; and because of his resemblance to Castleman, he is welcomed as the master. Dominie is introduced as an English cleric and The Squirrel as an Italian count, while Danny falls in love with Jeanne, who believes him to be her fiancé. Chilton, however, suspects the trio and finally unmasks them. It then develops that Danny actually is Castleman, who had decided to reform the two men who befriended him and to expose the dishonesty of his cousin.
No Mercy, No Remorse takes viewers back to the winter of 1993, with a journey into the deeply disturbing world of Paul Charles Denyer, the then 21-year old who is currently serving three life sentences for the Frankston murders.
A gentleman burglar is a detective, which acts as a shield to his more shady pastime.
A chorus girl breaks a deal with her boss by marrying the rich man she was supposed to ruin.
A murderous gang of mysterious creepy killers mark a young heiress for death. They are led by a ghostly voice known only as the "The Mystery Mind."
William has a simple job: he makes dead bodies disappear. His daughter Gloria has become used to rough-looking men dropping off corpses, and is even convinced that some of them are haunting their house.
An old millionaire is murdered.