Apartment 29

A fancy masquerade party is the scene of a jewel robbery, and later several suspects in the robbery are discovered to be aboard the same train.

A woman is murdered during an overnight train ride and a veteran detective clashes with young P.I. on how they are going flush out the killer. They find themselves racing against the clock when a second body is discovered.

At a reception given at the Rogers mansion in his honor, Somerset Carroll surprises the guests by saying he would aid a female convict reported to have escaped. Later he does just that when he finds the girl in the library, taking her to his own house. There she reveals herself to be socialite Helen Rogers, playing a game with him on the advice of her guests. He then declares himself a crook, holding the real Carroll prisoner, with the intention of robbing the Rogers mansion. She follows and shields "The Magnet" from the police, the real Carroll having escaped and notified them, and through her interference he eludes his would-be captors.

A convicted murderer has been sentenced to death in the electric chair. He decides to spill the name of the man who hired him, but just before he does he's killed by a poison dart. A police detective and a pretty young newspaper reporter team up to find out the identity of the man behind the killings.

A Parisian cop sets out to solve a sudden series of crimes, including robbery and blackmail. Based on a novel by Émile Gaboriau.

On the advice of his friend Pendleton, Ashton Kirk, a scholar and amateur detective, pays a visit to a house whose occupants, Charles Cramp and his sister Grace, complain of strange happenings involving Mexicans. Discussions with Ashton's agent in Mexico reveal that Cramp's father was once an engraver, who, in desperate need of cash, had agreed to supply Alva, a notorious thief, with forged currency plates. After a change of heart, Cramp refused to deliver the plates to Alva, and now Cramp's aunt, Miss Hohenlo, has come to her brother's home to find them herself. The clever Ashton realizes that the Mexicans are cohorts of Alva's and eventually uncovers an elaborate signalling and tunnel system used by Miss Hohenlo and Alva to locate the missing plates. Deciphering a message announcing the time and place of the arrival of the Mexicans, Ashton and his aides hide themselves in the house cellar, capture the thieves and destroy the plates.

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.

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 moving picture actress is mistaken for an escaped asylum patient; the insane girl then steps into the actress's life.

When a good-for-nothing man named Dan is stabbed to death and his arm broken, Charlie Chan is on the case. His first clue comes from the victim's sister, who noticed a prowler wearing a glow-in-the-dark wristwatch.

Holmes and Watson match wits with an opera star intent on blackmailing a king.

One of a series of murder mysteries featuring the character Philo Vance. A Lost Movie

Wealthy spinster, Rachel Innes rents a country house with her niece and nephew for the summer, only for a series of strange occurrences and a murder at the house's circular staircase to lead to shocking revelations about the home's owner and the family secrets within the house.

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.

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.

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”.

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.

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).