S1 • E1
A dead young man's affair with a beautiful widow brings odd, dangerous events to his grandmother's house.
S1 • E2
A man dies of a mysterious tropical disease on which his cousin, his heir, is the sole authority.
S1 • E3
Sherlock Holmes and his brother Mycroft investigate the murder of an amanuensis who clutches a pince-nez and whose last words were, "The professor--it was she."
S1 • E4
A nervous landlady brings a mysterious boarder to Holmes' attention, leading to a secret society and the efforts of a young couple to escape their past.
S1 • E5
Sherlock Holmes has disappeared into the Highlands, while Mycroft investigates the theft of the Mazarin diamond and Watson suspects a trap in an offer of $5 million to a former professor if he can find a third man surnamed Garrideb.
S1 • E6
Susan Cushing asks Holmes' help in solving the disappearance of her sister Mary Browner, but it doesn't seem Holmes' type of case until he is told of a Christmas present's grisly contents.
Sherlock Holmes
Mrs Hudson
Doctor Watson
Mycroft Holmes
Inspector Hawkins
Jim Browner
Culverton Smith
Isadora Klein
Professor Coram
Mrs Warren