The Demon Barber of Jermyn St.

I occasionally shop at Trumpers on Jermyn St; they're a dedicatedly old-fashioned barbering emporium who do really very nice and high quality Eau de Cologne and shaving soaps, amongst other shaving and barbering essentials.
In the basement they run a barbers shop where it is still possible to get things like a traditional straight-razor shave, and I have occasionally thought of treating myself to one.

Having seen Sweeney Todd the other night, I've suddenly gone right off the idea. Especially with Rowleys Grilled Steak restuarant directly opposite.