When a bored Sherlock eagerly takes the case of Gabrielle Valladon following an attempt on her life, the search for her missing husband leads to Loch Ness and the legendary monster.
as Sherlock Holmes
as Dr. John Watson
as Gabrielle Valadon
as Mycroft Holmes
as Madame Petrova
as Nikolai Rogozhin
as Mrs. Hudson
as Queen Victoria
as Gravedigger
as Woman in Wheelchair
as Von Tirpitz
as Cabby
as Guide
as First Carter
as Second Carter
as Hotel Manager
as Baggageman
as Porter
as Monk
as Inspector Lestrade
as Madame
