The Blue Bonnet

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

Layabout Al Beresford is in a position of responsible in the brokerage film he works in only because of his smart and self-sacrificing wife Mary. While he dawdles and wastes his time she works behind the scenes to complete his work in order to save his position. One day when Al is out wandering Mary delivers important documents she's completed to Wall Street broker Elihu Jasper. He in turn is charmed by her and offers Al a job, though he recognizes his worthlessness. Jasper offers him many tips and with Mary's support Al prospers. Foolishly not realizing it is due to the work of others Al leaves Mary and is soon ruined, taking desperate measures he frees Mary to enjoy a life with Elihu.

An American agent exchanges places in prison with a condemned British officer and brother of a woman he greatly admires and goes to the gallows.

When her husband dies and leaves her penniless, Mrs. Lawrence Evringham moves in with her wealthy but grim father-in-law and schemes to marry Eloise, her daughter, to the rich Dr. Ballard.

During his daily duties, Casey the Cop rescues a woman who's soon his sweetheart. Later, she learns from her banker uncle that her inheritance has been stolen, and he's accusing Casey's own cashier brother. Casey is on the case.

Betty falls in love with Samuel Hayden, who was washed ashore after having survived a shipwreck. The self-acclaimed most religious man in town accuses a kindly man, whom he calls "The Devil," of robbing Samuel. Soon becoming bored with this slander, he attempts to break up the romance between Betty and Samuel, contriving to have her turned out by her stern father. Samuel is later discovered to be an escaped convict. This disclosure results in a series of escapades during which the true character of the village hypocrite and "The Devil" are revealed, showing the former to be vicious and the latter to be generous and benevolent.

Even though he disapproves of the harshness with which his father, the Colonel, treats his employees, Wayne Craighill joins the old man's mining business. Adding to the strain between father and son, Wayne soon falls in love with Jean, the daughter of a small mine owner whom the Colonel wants to put out of business.

Making the best of her genteel poverty, our heroine prepares to attend the dance to which she has been invited, and, after surveying the general effect of her plain and somewhat passé attire, goes on her way with a painful self-consciousness to the home of her friend.

While visiting Alan, who works in Tokyo, she attends a festival with her Japanese maid while wearing a Japanese kimono. There she meets the wealthy Arai Takada, who is taken by the mysterious woman. Alan has dishonored and betrayed O'Mitsu, and her brother Arai plans a terrible revenge.

In the little Italian home the wife feels she is neglected and apparently it seems that her husband's love is growing cold, for he has become decidedly indifferent. She, therefore, plans with her cousin to arouse his love through jealousy. At an Italian picnic, after repeated vain efforts to draw her husband's attentions toward her, she starts off with her cousin, passing in view of her husband. His fiery nature is violently aroused with jealousy, and rushing home in a towering rage, would have wreaked disaster to the entire family, for his terrible suspicion poisons his mind even against his two little children. He learns the truth, however, and realizes now to what extreme the result of his neglect would have driven him.

It is hubby's birthday and the wife wishing to surprise him, surreptitiously interviews the jeweler's clerk to order a gold watch as a present. Her mysterious action arouses suspicion in the husband, who follows her at a distance and witnesses the meeting between her and the clerk. The hour arriving for the delivery of the watch, wifey goes to the door to meet it, and while standing outside, the door closes and locks on her skirt, holding her captive. Having no key, she induces the clerk to climb through the second story window and come down to unlock the door. All would have been well, but the clerk encounters the husband and it looked had for the clerk for a while.