The Woman of Mystery (1914)
Norma, a dancer, receives many presents from admirers. Among them she finds a peculiar looking box, out of which spring several poisonous snakes. Nelson, a detective, is called upon to solve the mystery.
Norma, a dancer, receives many presents from admirers. Among them she finds a peculiar looking box, out of which spring several poisonous snakes. Nelson, a detective, is called upon to solve the mystery.
Vinnie BurnsThe Woman of Mystery
Fraunie FraunholzDetective Nelson
Claire WhitneyNormaIn Dijon, Inspector Hanaud investigates Betty Harlowe after her uncle, Boris Waberski, accuses her of poisoning her wealthy aunt for an inheritance. While an initial autopsy finds nothing, Hanaud discovers the use of Strophanthus Hispidus—a rare, undetectable poison applied via an antique arrow. Amidst a flurry of "poison pen" letters and deception, Hanaud proves the murder occurred despite the lack of conventional medical evidence.
A man assists a woman to dispose of the body of her stepfather....
The Callbox Mystery (1932) is a British quota quickie crime film about a detective investigating murders linked to a mysterious callbox, likely involving suspects from a will, with a newspaper woman assisting and uncovering deeper secrets behind the apparent financial motives.
Bored by her hardworking husband, Tess goes to an illegal gambling den with a former suitor, Arthur Sinclair. The den is robbed and subsequently raided by police. Tess loses her rings and lies to her husband about her whereabouts. Her lies are exposed when the rings are found by the police. While trying to manage the fallout, she writes a compromising letter that is intercepted and used to blackmail her for $15,000. After being embroiled in further dangerous, fraudulent activity, her innocence regarding the robbery and associated crimes is established through the confession of a criminal named Peter Vanetti.

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.
A murdering skyjacker parachutes to safety and poses as a novice monk in an isolated New Mexico monastery.
After coming under suspicion for a computer technician's murder, six hackers team up to try to find the real killer.
After Outlaw Slippery Joe robs a miner and his daughter, a sheriff pursues him. While on the outlaw’s trail, the sheriff finds the miner's horse, abandoned by the outlaw, and notices the resemblance between Slippery Joe and Mr. Bond, a man he had encountered earlier who was searching for his twin brother. The miner and his daughter arrive at the ranger's cabin, recognizing Bond as the robber.
A rousing fusion of satire, mystery and action. Aristrocrat Ambrose Applejohn is aching for excitement. He gets more than he bargained for when two Russian thieves, Anna Valeska and her partner Borolsky, arrive at the mansion one dark night.
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.

Holmes goes on the trail of a Rembrandt painting, stolen by a drug-addicted artist.

A woman's cheating husband is murdered at their country estate, and suspicion immediately falls on her.
After finding her sister dead, Maria tries to find out who or what is to blame.

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.
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.
This silent mystery is considered a lost film.
Mystery film in the detective Stuart Webbs series.

An operator at a mobile pager company has her life turned upside down by a seemingly senseless abduction. Currently considered to be a lost film (never released to the general public, after its theatrical premiere in Puerto Rico).
The story starts with a prologue set in 1889 in which we see an angry husband murdering his wife's lover. The setting then moves to 1929, just as an antiques dealer Philip Vantine (John St. Polis) has finished moving into the same house where the 1889 murder occurred.
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.