Charlie Chan is sought out by Pamela Gray, a desperate young socialite whose brother Paul awaits execution for the murder of a weapons inventor. Pamela is convinced of his innocence.

Newly arrived in the nineteenth century court of Emperor Francis 1st of Austria Countess Valerie happens to overhear a young pianist and advises him to play with more feeling, for he is playing a piece by Franz Schubert, her favorite composer. Unknown to Valerie, the man is Schubert, and he playfully keeps his identity a secret. Valerie visits Franz the next day, and he teaches her to play the violin part of a new song he has written, and she hopes for romance though he still longs for his lost love Caroline. But as a week passes, he forgets Caroline and returns Valerie's affections. When Franz is evicted, there is much tumult, but he is finally called to court where his music is celebrated, and Valerie and he are reunited.

When a music-hall dancer is murdered, a moss rose marks the page of a Bible next to her body. Luckily, another chorus girl saw a gentleman leaving the lodgings. She approaches him directly, saying she'll go to the police if he doesn't meet her demands, but he brushes her off contemptuously. When he learns she's dead serious, he tries to buy her off with a thick wad of pound notes. But it's not money she's after; all she wants is two weeks at his country estate, living the life of a lady.

Alexandre Bisson's play "Madame X"

Ventriloquist Jerry Morgan has failed with another love affair. The reason: when the relationship reaches the point when it is time to discuss marriage, his two dolls become mean and jealous. Morgan's dollmaker Papinek is a member of a spy ring who has stolen the secret plans for the top-secret Lafayette airplane. Since Morgan is leaving for Zurich the same night, he decides to hide the secret plan in the heads of the dolls.

A behind the times Chicago bootlegger goes to England with his lawyer to claim his estate as the Earl of Gorley.

The owner of a coal mining operation, falsely imprisoned for fratricide, takes a drug to make him invisible, despite its side effect: gradual madness.