A doctor who cannot figure out what is wrong with his patient refers him to a detective, whom he hopes will be able to discern the cause of his mysterious illness.
Sherlock Holmes solves a murder rooted in the Mormon trek of 1850.
A murderer strikes at a secret gathering of top law enforcement agents, brought together by a millionaire seeking their endorsement of his candidate for governor.
A young nurse reports to work in a hospital's psychiatric wing and gets involved in a series of mysterious deaths.
The wife of a TV executive thinks she might have committed a murder and is tormented by a stalker while locked inside an empty TV station.
A mystery writer's son is being held for $1 million ransom.
The Bar-C Mystery is a 1926 American silent Western 10 film serial directed by Robert F. Hill. Chapters: 1. A Heritage of Danger; 2. Perilous Paths; 3. The Midnight Raid; 4. Wheels of Doom; 5. Thundering Hoofs; 6. Against Desperate Odds; 7. Back from the Missing; 8. Fight for a Fortune; 9. The Wolf's Cunning; 10. A Six-Gun Wedding.
Having been rejected by Phyllis Leigh in favor of wealthier suitor Peter Lester, Hugh prevents Elinor Ashe from drowning herself. Hugh recklessly marries Elinor, but they occupy different wings of his house. Lester and Phyllis arrive as guests, and a new manservant favored by Elinor is hired. When Lester is murdered, the servant is charged with the crime, and Elinor admits to Hugh that he is indeed her father, recently released from prison. While in the company of Marcia Marshall, Hugh discovers her husband Harley dying in a Chinese opium den. He confesses that, victimized by Lester, he killed him. Elinor's father is released, and she reconciles with Hugh.
A condemned man uses hypnotism on a judge. After the man's death, the judge finds himself acting like the condemned man.
Much-married and once successful writer Henry T. Aythecliff, now heavily in debt, summons his three ex-wives to his mansion, planning to extort a sizable amount of money from each. When he is discovered dead, clues indicate that each of his four wives had motive and opportunity to murder him, and a young detective must sift through some ingeniously devised evidence.
A murdering skyjacker parachutes to safety and poses as a novice monk in an isolated New Mexico monastery.
Business partners Bradley and Collier both love Mary. Bradley leads Collier to believe he is engaged to her so Collier prepares to head West when Lola, the young girl Bradley had seduced and abandoned, appears at the office and begs Bradley for help. He spurns her slipping out of the office and making it appear that Collier is the lout. Mary with that perception marries Bradley only to discover by Lola’s deathbed confession that she has been deceived. Tony, Lola's father, crazed by his daughter's death, comes to Bradley's office and the next day Bradley is found dead. When Tony is arrested Collier steps forward to say he confronted Bradley and as they struggled the revolver Bradley drew went off, killing him. Tony is freed and Collier and Mary marry.
While touring India, noted English criminologist Richard Duvall saves the life of a Buddhist priest who rewards him with the presentation of a wonderful crystal globe. By gazing in it the priest demonstrates that Duvall can fall into a cataleptic state and his astral body is released and is free to roam at will. Shortly afterward he uses the orbs powers to help his lady love Grace Ellicott solve the murder of her aunt and restore her fortune.
After a popular singer dies in a mysterious auto accident, her fiancee assembles all those who were to attend there wedding, hoping to find her killer.
Babs Van Buren saves her lover from the electric chair and at the same time extricates her older sister, Connie from a trying situation.
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.
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.
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.
Bob Marston, a San Francisco socialite turned amateur detective is assigned to apprehend a gang of bootleggers.
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.