John’s first day back at work after knowing Sherlock is alive.
As he enters this place of work, we see a, ‘no cellphones’, sign. In ASiB, the idea of the cellphone as a stand-in for your heart was made explicit. John’s heart is not here, at his job with Mary.
Two sheets on either side of the door show a poster related to heart health, judging by the heart-shaped logo in the top right hand corner. Three people are featured, one of whom is prone and receiving assistance from the other two. A symbol of the John/Mary/Sherlock love triangle and foreshadowing John in the bonfire and Mary shooting Sherlock.
On the far right a sign pointing to the right and says, ‘prescriptions’. The thing you need to heal you, your medicine, it’s not here, it’s this way. Next shot: on the right, Baker St, literally with a sign. That’s what John needs. The eye travels from left to right to John’s old flat, directly from the, ‘prescriptions’, sign of the previous shot.
In the first scene the only thing that’s alive and lush are a couple of plants on the right side of the screen. At Baker St we see two plants on one of the balconies. The only thing that’s alive at John’s work is something that represents/reminds us of Baker St.
The red colour of the first shot is darker and cooler, the red of prohibitions and warnings. This red means, ‘no’. The red colour of the second shot is lighter and warmer. The red of the awning and of a car parked on the street. A red car is a symbol of male virility and libido. This shade of red says, ‘yes. Oh, God, yes.’
Going into his work, everything is a sharp, rectangular shape, representing reason and logic. This is the place where John logically thinks he should be: at a respectable, safe job with a respectable, safe partner. The Baker St establishing shot shows us orbs of light surrounding a lamp that’s also a sphere. This on the show is representative of feelings via their association with the solar system made in TGG.
Baker St is what John needs because it’s where his heart and libido want him to be. It’s a place that calls to him. Sherlock is, ‘like a drug’, like a medicine. Sherlock heals him. He’s not the type of drug you take because you’re addicted or trying to escape, he’s the type of drug that you need to stay healthy and alive, like say, your heart pills.
If you don’t get your prescription filled out, if you don’t take your pills, you might end up on the ground like that person in the heart health poster. Like Sherlock shot by Mary. Like John being saved from a bonfire; quietly consumed by a secret flame.