The Mystery of Lake Lethe

12 part silent serial- 1. The Castle of Fear 2. The Spider's Web 3. The Vanishing Heiress 4. The Room Without a Door 5. Shots in the Dark 6. Ambushed 7. The Secret of the Coin 8. Into the Web 9. The Baited Trap 10. The Lady in White 11. The Closing Web 12. The Final Reckoning. A prequel to The Ace of Scotland Yard.

A condemned man uses hypnotism on a judge. After the man's death, the judge finds himself acting like the condemned man.

Within less than five months after the mysterious death of her mother, Adene Maintland wakes in the early morning to learn that her father has also died silently and mysteriously. She suspects her step-father, Wainwright.

15 chapter mystery serial: [1] “The House of Secrets,” released 5 April 1915; [2] “The Face of Fear,” released 12 April 1915; [3] “The Silver Cup,” released 19 April 1915; [4] “The Ring of Death,” released 26 April 1915; [5] “No Other Way,” released 3 May 1915; [6] “The Strength of Love,” released 10 May 1915; [7] “Into the Night,” released 17 May 1915; [8] “In the Wolf’s Den,” released 24 May 1915; [9] “The Iron Hand of the Law,” released 31 May 1915; [10] “The Inspiring Sword,” released 7 June 1915; [11] “The Valley of the Shadow,” released 14 June 1915; [12] “The Sacrifice,” released 21 June 1915; [13] “The Man Who Did Not Die,” released 28 June 1915; [14] “A Story of the Past,” released 5 July 1915; [15] “The Coming of the Kingdom,” released 12 July 1915.

Anne Cabell, working as a dancer at a nightclub goes to confront a man who is blackmailing her friend with incriminating letters. When he is killed, she comes under suspicion of murder. However it turns out that he was a foreign spy, and she had nothing to do with his slaying.

Sonya, a Marseilles Cafe performer involved with a pack of thieves is rescued from her criminal life by a police official who sends her lover and partner in a knife-throwing act to jail and then tries to seduce her. Not submitting to the official's advances, she falls in love with an Apache dancer in Paris and works with him, holding her other admirer at a distance. The official is mysteriously killed, presumably by her lover, it then falls to Sonya to find the real felon.

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.

In her first Paramount film, Billie Burke plays Helen Wentworth, an heiress who's bored with the high life and decides to enjoy a bit of the low life.

The Mystery Club, an organization of millionaires, draws up an agreement at the instigation of Cranahan, wagering that crimes can be committed without detection by the police; Inspector Burke serves as arbiter. A forfeiture of $25,000 is set, and the members draw secret lots to decide who is to be the criminal. When Burke himself is reported murdered, the members agree to cancel the agreement but cannot find the document.

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 multimillionaire is murdered, and his will leaves all his money to a beautiful young blonde. The murdered man's son thinks something is fishy, and a homicide cop sets out to find out who was behind the man's death. Complications ensue.

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.

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.

A film buff's obsession with an elusive, possibly nonexistent film spirals into a dangerous descent, blurring the line between reality and madness.

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.

After old Trowbridge is mysteriously murdered, his nephew, Kane Langdon, is accused of the crime. Trowbridge's adopted daughter Alice makes every effort to prove Kane's innocence, but to no avail. When Kane escapes from the clutches of the law, Alice works with him to investigate the crime. They soon discover that Judge Hoyt, a great friend of Trowbridge and an ardent admirer of Alice, killed Trowbridge after forging the old man's will to read that Alice would only inherit his fortune if she married the judge. The judge, confronted with the accusation, becomes so unnerved that he confesses to the crime, and all ends happily with Alice in Kane's arms.

Gordon Kingsley lives happily with his wife Dorothy and little daughter Mary Jane. On visiting the home of San Francisco architect Frank Mason, he is shocked to discover a portrait of his own wife and daughter. Suspecting the worst of Dorothy, he hires a private detective....

Sentenced to be deported from Hawaii, Hung Chin Chung pledges twenty years of service to Henry Drew to escape the certain death that awaits him in China. Rage at his humiliation and inability to marry as a free man smolders in him throughout his servitude, near the end of which he sails to San Francisco with the Drew family. Also on board is Ralph Coolidge, who tries to retrieve from Drew his share of their gold mine, and who loves Drew's secretary, Mary-Will Tellfair. Shortly after their arrival, Henry Drew is murdered; suspicion falls on Ralph, the owner of the murder weapon, a curious Chinese dagger; but subsequent events lead Hung Chin Chung to confess to the crime.