Farmer Allen Golyer finds his romance with his naïve sweetheart Susie usurped by Bertie Leon, a traveling salesman. Leon's slick, citified ways win the girl's heart and she leaves Golyer for him . Just then Golyer's friend, Colonel Blood, shows up with a sapling which he presents to him. Leon meanwhile leaves the little country village and is never heard from again. Susie, believing that he was fickle, agrees to marry Golyer. For the next 20 years they are happy, until Golyer goes to a seer.
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.
A Parisian cop sets out to solve a sudden series of crimes, including robbery and blackmail. Based on a novel by Émile Gaboriau.
Two men, one of them a villainous hypnotist, contend for the same woman, unaware that she suffers from dual personality disorder.
Holmes and Watson match wits with an opera star intent on blackmailing a king.
Bob Marston, a San Francisco socialite turned amateur detective is assigned to apprehend a gang of bootleggers.
Police headquarters has been plagued by a series of robberies, culminating in the theft of a priceless necklace smuggled from Europe. The detectives are on the track of a gang led by master thief Ramon Mordant and his accomplice known as "the Face" because of his twisted and hideous countenance.
Louis and August Siever, the twins sons of a German father and American mother, are traveling in Europe when war breaks out. August joins the Kaiser's army, but Louis, a supporter of the United States, is practically made a prisoner in Berlin for a year while he tries to prove his American citizenship. After a violent confrontation with Louis, August steals his brother's passport and leaves for New York with Gerda Anderson, a German spy.
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.
A poor man refrains from proposing to the woman he loves until he can secure the fortune left him by his uncle. Believing the treasure awaits in his uncle's abandoned mansion, he begins searching... only to uncover mystery, murder, and a killer ape.
In this story the hero is haunted by a beautiful young woman who tries to stab him to death with a knife. This fantasy recurs on each of his birthdays, becoming more and more real as the years go on. He leaves home to secure a place as groom, but arrives at his destination too late. Forced to retrace his steps, he seeks shelter in a little inn, forgetting that the hour of his birth is approaching. In the middle of the night he awakens, terrified with fright… Based on Wilkie Collins' novel “The Dream Woman”.
The Mystery of Lake Lethe was a murky crime short.
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.
The household of Senator Walker consists of himself, his ward, Mary, and his nephew, Herbert. The other members of his household are John, an old servant, Lucy the maid, and a half dozen more servants. John is smitten with Lacy. She doesn't take him seriously, owing to the difference in their ages. Mr. Walker, rather old and feeble, draws up his will and leaves the bulk of his property to Mary and Herbert. He bequeaths $5,000 to his faithful servant John. Herbert is very fond of his uncle. The old gentleman is very much attached to Mary and very desirous that she and Herbert should be wed at the proper time.
Rosalind Joy (Helen Foster) is an heiress who has inherited a South Seas island known as Pleasure Island. A hidden cache of gold is allegedly buried on the island, which has several haunted structures. Rosalind's uncle, Spring Gilbert (Al Ferguson), wants the gold for himself and declares he will stop at nothing, not even the death of his niece, to get it. Rosalind, meanwhile, is befriended by Jerry Fitzjames (Jack Dougherty), a playwright. Unfortunately, Jerry has only recently escaped from a psychiatric hospital. Although he swears to protect Rosalind, she doubts Jerry's sanity. The two lovers race against Uncle Gilbert (who has set several traps for them) to find the treasure. In the end, Rosalind and Jerry are aided by the "Phantom Rider," a spectral horseman.
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.
William Bryant, a hopeless invalid due to a profligate life and made vicious by the fact, lives to make life a misery for his wife Margaret. One evening Bryant's physician, Dr. Cameron arrives at his patient's house, just in time, to intercept a blow that Bryant has directed at Margaret and knocks him unconscious in the ensuing struggle. Margaret flees with Cameron, observed by the chauffeur who enters the house with the intention of stealing. Meanwhile Bryant has regained consciousness and in his twisted mind determines to kill himself and frame his wife. He’s almost successful until at almost the last moment his butler steps forward and acknowledges that Bryant was shot as they struggle with his pistol which the chauffeur confirms.
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.
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.
Babs Van Buren saves her lover from the electric chair and at the same time extricates her older sister, Connie from a trying situation.