Fanchon Royer Pictures

Aircraft are being shot down by a large black plane with a big "X" painted on the wing. The chief suspects are invited for the weekend to an old dark mansion.

A wealthy young woman, racked with guilt because she wasn't there when her mother died, is so desperate to contact her that she gets involved with a phony mystic who promises to put her in touch with her mother's spirit, but who is really after her money. A reporter who loves the young woman sets out to expose the phony "psychic" for the charlatan he is.

The son of a disgraced Olympic decathlete prepares to become a star in his own right. His quest is complicated by a beautiful girl and a bitter rival.

Cub reporter Daniel Greely gets a job on a big city newspaper. A string of robberies occur and the owner of the paper blames the police for not rounding up the crooks. Daniel discovers that a coded message in the newspaper's editor's box tips the crooks about each robbery.

A man's wife is put on trial for the murder of his first wife.

A young woman tries to break up a budding romance between her sweet but naive young sister-in-law and a man she regards as a no-account bum. In the process she accidentally kills the would-be boyfriend. Complications ensue.

William Bakewell stars as an inventor who develops a high-powered boat engine. Bakewell, of course, created this wonder machine to benefit mankind-and, incidentally, to win an upcoming motorboat race.

Larry Evans, champion race car driver, is envied by his chief rival, Eddie DeSylva, who has more ambitions than merely winning the races; he has designs on the motor patent held by Corbett (Tom Moore), Larry's employer. Eddie also has a yen for Corbett's daughter, Norma, who prefers Larry. Eddie intentionally causes a race wreck that injures Larry and sends him to the hospital.

Following President Alarcon's ouster from rule in the mythical republic of Luvania, a group of aristocrats plot in Monte Carlo for Alarcon's return and sign a manifesto pedging their fortunes to that cause. After Francisco Hernandez's father and brother are arrested as conspirators, secret intelligence chief Mendez offers Hernandez the chance to save their lives if he secures the manifesto in Monte Carlo.

A Spanish-language version of "Revenge at Monte Carlo".