The Case-Book of Sherlock Holmes

Holmes is called to conduct his keen investigations far from his loyal Baker Street. Lady Frances, an aristocratic English lady, disappears during a trip to the old continent; indeed, more than five weeks have passed without the woman having given any news about herself. Watson, sent back by Homes who, said to be held in London by major cases, begins to reconstruct the latest movements of Lady Frances and to get on his trail. The clues collected bring Watson to the French town of Montpellier, where he will collide in a violent fight with the main suspect and from which he will manage to escape unharmed only thanks to the providential help of his friend Sherlock Holmes, who unbeknownst to his colleague, he had followed everything at a distance, without being noticed.

Neil Gibson, magnate of a large mining industry, who, convinced that the money gives him permission to behave with extreme arrogance, asks the help of Sherlock Holmes to exonerate from the charge of murder Grace Dumbar, governess of his children, blamed of the murder of the landlady, Mrs Gibson. The evidence is all against her: a handwritten note is found in the victim's hands and the murder weapon is found inside her wardrobe, a revolver missing a shot. The merit will once again be the incomparable Sherlock Holmes, which, not letting in any way to influence the events too obvious, will discover thanks to a scratch found on the wooden bridge of Thor, apparently meaningless, that there is no murder and that Mrs Dunbar is guilty only of being a nice and pleasant teacher. It is suicide, this is the verdict of Holmes: the wife of the rich magnate, jealous of the woman, stages her murder so as to send her rival in jail forever so as not to allow her to end up in her husband's arms.

Sherlock Holmes is contacted by the groom John Mason, worried about the strange events that are happening at Shochombe Hall, the prestigious estate where he works for some time without news of Lady Beatrice Falder, who owns the estate along with his brother Sir Robert Noberton. John suspects that behind the disappearance there is the hand of the latter, burdened by serious debts with an extortionist, also disappeared into thin air, and in the grip of signs of psychic imbalance.

Sherlock Holmes and Watson are called to investigate the mysterious murder of a farmer, whose body was found in a forest adjacent to the property of a wealthy tycoon. At first all suspicions lead to the victim's son who is stubborn in not wanting to answer the questions of the investigators and not to tell why the relationship with the father had become tense in recent times. Holmes, however, is convinced that behind the murder is hiding something bigger on which to shed light.

A rich benefactor, on behalf of whom Colonel Sir James Davery turns to Holmes, prefers to remain anonymous. The issue is very delicate: Violet del Melville, daughter of the famous general, has fallen madly in love with the Austrian baron Grunner, an absolutely unscrupulous man, a well-known hunter of talent and suspected of having even murdered many of his former companions; but a heart in love does not want to listen to reasons, not even those reported by a famous and important investigator which is Shelock Holmes! In his help comes a certain Kitty Winter, formerly in love with Grunner who after being seduced and abandoned by the Baron seeks revenge. Miss Winter reveals the existence of a diary that the impostor jealously guards and constantly updates, taking note of names, meticulous and complete descriptions even of photographic portraits. Surely if Violet could see and read that notebook written personally by her boyfriend it would be decided to break the promise of marriage. Holmes and Watson will have a lot to do and will have to look back: Grunner is smart and dangerous.

Since Prof. Presbury, an esteemed professor of a prestigious English university, has returned from Prague with a mysterious and inseparable wooden box, he has undergone a real behavioral metamorphosis. His attitude towards the people around him has completely changed, and the change is so deep as to bring his faithful watchdog to attack his master himself and, even more seriously, he seems to have been seen crawling, just from his particular secretary, Mr. Bennett. Needless to hide that, once again, for the intelligent Holmes will be a breeze to discover the truth. The mysterious wooden box contains a drug, to be exact a filter, that the poor professor had decided to hire to rejuvenate and to "keep up" with his young girlfriend Alice Morphy.