Than, as soon as Watson is gone, Holmes grabs a hollow book from a high shelf. It's got a hidden camera in it and he quickly gets to the footage of M (Vinnie Jones) leaving the note.
M is out on the street and he does not want to buy some knockoff Gucci shades from this kid who's bothering him. He's watching a woman with a dog enter an apartment. He shoves the kid and leaves.
Watson is in bed composing her final assessment for Holmes's father, who is listed on the computer screen as "M. Holmes." She's having trouble with the first sentence.
Later! The doorbell buzzes. That young man from earlier is introduced by a police officer, who says that he was told to stop anyone from entering. The young man says he was looking for Sherlock. But he's not a "friend" of Holmes, because he doesn't have friends. So he's an associate. Watson shoos the cop away and the kid asks if she's a hooker. Nope. Anyway, Holmes once spotted him and a friend running a scam and decided not to turn them in. So they do some spying for him, which makes them the local Baker Street Irregulars. And recently, Holmes hired him to find this guy in a picture. The picture, of course, is a shot of Vinnie Jones creeping around the Brownstone. The young man elaborates: "He's a Brit, just like Holmes said." Watson is sort of listening, but she's distracted by looking for the hidden camera. The kid would like to get paid.
Holmes comes home. Watson is glaring at him. She would like an explanation for Teddy. I would like an explanation for Teddy not being given a name in the last scene. Do you think I liked calling him "the kid" all the time? Watson also complains about the hidden cameras, of which she found three. He explains that the Brownstone is his sanctum sanctorum so naturally he's got some security. She says he sent children to look for him at fancy hotels, which she considers reckless. And also, why hotels? The answer is that M has fancy driving gloves and shoes in the video. So he's rich and new in town. And on the note, there was a scent: high-end hand soap and a higher-end mint shampoo, both of which are used in hotels around town. Question: why is a bald man using shampoo? Holmes brings up Irene Adler and Watson realizes that M killed her. Holmes solemnly says, "I have no intention of capturing M. I have every intention of torturing and murdering him." Nice! It's a twist!