Holmes is still angry at Watson learning something about his past in the last episode. So instead of telling her about Irene, he gets really childish and petulant. Which, don't get me wrong, is a lot of fun to watch. So for most of the episode, the two of them are split up, which lets Holmes spend more time annoying the police.
And he has plenty of opportunity to do that as the case involves a family that's been murdered in exactly the same way as some people thirteen years ago. And the culprit, Wade Crewes, was brought to justice by Captain Gregson, who doesn't take kindly to the suggestion that maybe he got the wrong guy back then. He's also quite put out by the revelation that the arrest came on evidence that was planted by his partner. To be fair, though, the guy does sound like someone who'd kill a bunch of people.
While Holmes is pursuing this investigation, Watson is off at the rehab facility that Holmes recently left. None of the doctors learned anything about Holmes, but the amiable gardener is also a beekeeper. Naturally. So she manages to get some letters that Irene sent Holmes. She doesn't read them, so Holmes likes her again. Although he does stick the letters in a blender, so he's still at least a little petulant.
The murder case briefly leads Holmes and Watson to a one-eyed fan of Chechen football, but that's quickly dismissed as a red herring. The actual deal is that Wade Crewes had an illegitimate son who volunteered at the prison, taught him to read, and then went out to duplicate his father's killings in hopes of getting him freed from jail. It doesn't work.
And then Holmes tells Watson that Irene died.
A spooky figure in a mask and hood walks through an expensive house. I can tell it's expensive because there's a spiral staircase in one of the rooms. That's one of the most expensive kinds of staircase! Oh, and there are two people with pillows taped to their faces. The spooky figure shoots them both, so I guess we can assume he's a bad guy.
With that out of the way, we join the Brownstone in an awkward morning. Watson puts some stuff in a juicer while Holmes gets something from the refrigerator. They are distant but polite. Watson deduces that Holmes is mad at her for going to Alistair and learning the name "Irene." And she recaps everything that's happened on the show so far so people who haven't been paying attention will know what a sober companion is. Luckily for Holmes, Gregson sends him a text about a double homicide. So he admits that he's been sulking and has to respect her right as a sober companion to meddle. Then he claims he's going to go get coffee and doesn't come back. He's escaped!
At the crime scene, Gregson notices that Watson isn't there, but doesn't care a lot. It is, in fact, the two people who got killed in the opening. Gregson says it's like a nightmare and Holmes supplies the information that this is just like series killings from 1999. Back then, it was Gregson himself who arrested someone named Wade Crewes. It seems like a weird murder to copycat and it's also unlikely to be a coincidence. Holmes wants to go to the shoe closet. As they go there, we see a fancy shot of the spiral staircase. This house is at least four stories tall.
Holmes explains that in the previous cases, there was always one shoe missing from the closets. And indeed, there's a high-heeled Jimmy Choo with no partner in this house's closet. Apparently Wade Crewes said he worked alone, but Holmes thinks he may have lied about that.
Gregson is giving the troops their instructions in the police station when Holmes's phone rings (with the music from Psycho, which strongly suggests that Holmes has a sense of humor). It's from Watson, so he ignores it. Holmes wants to go talk to Wade Crewes with Gregson. Gregson doesn't want to do it and he's sneering and sarcastic about the idea that Cruise could be involved in any way. Or that Cruise could be innocent. Anyway, it's another scene where the cops have forgotten how smart Holmes is, which I'm already tired of. The phone rings again and Holmes pretends to have a bad connection. But Watson is right next to him, presumably because she correctly guessed he'd be at the police station. Holmes says she's not allowed to try to get through to him and they're back to the letter of the law: he'll check in every three hours and allow drug tests. She leaves in a huff.