A new look at the classic stories by Conan Doyle, where the main character is Mrs. Hudson, a landlady from Baker Street. But now she is not a modest landlady, but a brilliant young lady with a lively mind and a sharp tongue. While Sherlock Holmes and Dr. Watson are carried away by writing, Mrs. Hudson quietly reveals all the mysteries, including the mystery of the Grimpen Marshes monster. All this is accompanied by the songs of the Red-Headed League band and against the backdrop of the majestic Tower Bridge, which becomes either a living room on Baker Street or the gloomy Baskerville estate.