The Shell

At a party thrown at the Metcalf estate, the Marquise D'Irancy's Sultana diamond disappears when the lights go out during a power failure. Suspected of the crime is William Kirkland, the wastrel son of the wealthy Kirkland family, but William's sister Diana comes to his defense. Aiding her in the investigation is Clamp, a wandering peddler.

A romantic rivalry among members of a secret society becomes even more tense when one of the men is assigned to carry out an assassination.

A masked criminal who dresses like a giant bat terrorizes the guests at an old house rented by a mystery writer.

A general store clerk and aspiring detective investigates a mysterious disappearance that took place quite close to an empty insane asylum.

A magician seeks vengeance upon the man who paralyzed him and the illegitimate daughter he sired with the magician's wife.

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.

After returning home to his long-estranged mother upon a request from her deathbed, a man raised by his parents in an orphanage has to confront the childhood memories that have long haunted him.

John Stonehouse (William Russell) checks into a hotel, intending to commit suicide. But instead he winds up helping a girl, Gilberte Bonheur (Fritzi Brunette), out of a jam. He finds her bending over a man who she has apparently killed, and since he's about to kill himself anyway, he offers to assume the blame. Throw a valuable emerald into the works, and the fact that the dead man suddenly comes back to life, and Stonehouse -- not to mention the audience -- becomes thoroughly befuddled by it all. Everything clears up, however, when Gilberte gives him a theater ticket -- it turns out that everything he went through was the plot to a stage play, enacted in real life by the actors. The critics roasted the play, saying it wasn't true to life, and this was their proof that the situations really could happen. Gilberte retires from acting when Stonehouse proposes.

A film projectionist longs to be a detective, and puts his meagre skills to work when he is framed by a rival for stealing his girlfriend's father's pocketwatch.

London. A mysterious serial killer brutally murders young blond women by stalking them in the night fog. One foggy, sinister night, a young man who claims his name is Jonathan Drew arrives at the guest house run by the Bunting family and rents a room.

A world-famous pianist loses both hands in an accident. When new hands are grafted on, he is horrified to learn they once belonged to a murderer.

The Man With The White Mask

A demon, a reaper, and the ghost of a prostitute read gothic short stories and act them out.

Rich old Cyrus West's relatives are waiting for him to die so they can inherit. But he stipulates that his will be read 20 years after his death. On the appointed day his expectant heirs arrive at his brooding mansion. The will is read and it turns out that Annabelle West, the only heir with his name left, inherits, if she is deemed sane. If she isn't, the money and some diamonds go to someone else, whose name is in a sealed envelope. Before he can reveal the identity of her successor to Annabelle, Mr. Crosby, the lawyer, disappears. The first in a series of mysterious events, some of which point to Annabelle in fact being unstable.

A young woman consents to a bad marriage to an unscrupulous man in order to save her father from ruin. When her marriage is disrupted by a murder, three different people confess to it.

The abandoned Balfour House, the owner of which was found dead five years earlier, comes back to life with the arrival of two suspicious sinister-looking tenants. This film was lost in the 1965 MGM vault fire; only a few stills exist.

Coke Ennyday, the scientific detective, divides his time into periods of "Sleep", "Eat", "Dope" and "Drinks". In fact, he overcomes every situation with drugs: consuming cocaine to increase his energy or injecting it in his opponents to incapacitate them. To help the police, he tracks down a contraband of opium (which he eagerly tastes) transported within "leaping fishes", saving a "fish-blower" girl from blackmail along the way.

Sherlock Holmes is a master at solving the most impenetrable mysteries, but he has his work cut out for him on his latest case. As the famed detective investigates an alleged theft, he’s brought face to face with his most devious adversary yet — Professor Moriarty.

The final days before Weston mysteriously snaps and goes insane.

After the death in suspicious circumstances of Charles Baskerville, the last descendant of the lineage of the Baskervilles, Henry, returned to the old family mansion. The charismatic detective Sherlock Holmes and his faithful assistant, Dr. Watson, investigating the case, and discover the existence of a supernatural hound that in addition murderer according to history, killed many years ago Hugo Baskerville, the first of the line, and it seems that the curse stalks his descendants.