- Sherlock Holmes: My name is Sherlock Holmes. It is my business to know what other people don't know.
- Peterson: Mr. Holmes, the goose! The goose, Mr. Holmes!
- Sherlock Holmes: Well, what of it, man? Has it come back to life and flapped off through the kitchen window?
- Henry Baker: At this season of the year, more than ever, we must not deprive those we love. Or even those to whom we are married.
- Sherlock Holmes: Mrs Hudson, we shall turn dinner into supper, and we will follow up this clue while it is still hot.
- Mrs. Hudson: [mutters] Which is more than the supper will be.
- Sherlock Holmes: Watson, we have been given a line of investigation which has been missed by the police and which a singular chance has placed in our hands. Now let us follow it to the bitter end.
- Dr. Watson: [mutters, shivering] Extremely bitter.
- Sherlock Holmes: Faces to the south, then, and quick march!
- [first lines]
- Catherine Cusack: [answering phone] Countess of Morcar.
- Catherine Cusack: Thanks.
- [hangs up]
- Catherine Cusack: My God! She's back. She's getting out of the carriage. Come on, Ryder, get a move on!
- Dr. Watson: I suppose that, homely as it looks, that thing has some deadly story linked to it. That is the clue which will guide you in the solution of some mystery and the punishment of some crime.
- [last lines]
- Dr. Watson: Midnight. Merry Christmas, Holmes.
- Sherlock Holmes: And to you, my dear friend.
- Dr. Watson: Just a minute. Holmes, I cannot contemplate eating while John Horner is still on remand. Do you suppose Bradstreet or one of his colleagues might still be at their desks?
- Sherlock Holmes: Eh, well. You're quite right, Watson. Come, let's go.