Jean and Marise, young lovers forced from their homes, flee to Paris. Irrevocably separated there, their lives deviate into the slums and hard labor of low-class French society. All the while, the two desperately search for one another.
Sue Graham is a small town girl who wants to be a motion picture star. She wins a contract when a picture of a very pretty girl is sent to a studio instead of her picture. When she arrives in Hollywood, the mistake is discovered and she starts working in the props department of the studio instead. Her parents then come out to California and invest some money with a very shifty individual.
Heath Haldane (Houdini) tracks down a vicious gang of counterfeiters, narrowly missing death several times. He must rescue Adele Ormsby, whom he loves despite her pending marriage.
Francis, a young man, recalls in his memory the horrible experiences he and his fiancée Jane recently went through. Francis and his friend Alan visit The Cabinet of Dr. Caligari, an exhibit where the mysterious doctor shows the somnambulist Cesare, and awakens him for some moments from his death-like sleep.
A society cracksman is caught when his dying victim pulls out his glass eye. There's a hint of Holmes' nemesis Professor Moriarty to the criminal mastermind of this WWI crime entertainment.
When a couple of scammers hold young Alice Faulkner against her will to discover the whereabouts of letters whose dissemination could cause a scandal affecting the royal family, Sherlock Holmes decides to take over the case. (Considered lost, a copy was found in 2014, in the vaults of the Cinémathèque Française.)
When a stack of valuable bonds go missing from the Grant household, suspicion falls on little Carmen Grant's playmate Georgie, whose father is a poor ex-convict trying to go straight.
A thief notices a large amount of money in a woman's purse. When she dozes off on the train, he snatches the cash. Discovering her purse empty, the woman confronts the pickpocket and his simple robbery escalates into a crime far more serious.