A diamond advocate is attempting to steal a collection of diamonds, yet troubles arise when he realizes that he is not the only one after the diamonds.
Exploring the somewhat darker and more mysterious side of the Lewis Carroll's classic book, the movie follows Alice Liddell (the book's inspiration) as an old woman who is haunted by the characters she was once so amused by. As she thinks back on it, she starts to see her relationship with the shy author/professor in a new way and realizes the vast change between the young Alice and the old.
A plumber, John Horner, is arrested just before Christmas and charged with stealing a famous jewel, the Blue Carbuncle, from Lady Morcar. He denies the theft - but he has a criminal record, and all the evidence is against him. After Holmes's doorman finds the Carbuncle in a Christmas goose, Holmes uses an old hat to track the goose to a poultry dealer, then traps the servant who stole the jewel and framed the plumber. The Blue Carbuncle has a dark history, and the stone features in the programme's opening credits with turbulent scenes from its past.