There’s no guessing as to where Letter To A Friend gets its look. The grey, flickering lights; the darkness heavy and consuming as miasma; everything out-of-focus, fuzzed and grainy as if seen through an old, dying lens. The creator needn’t say that its “visual references come from expressionistic silent movies and old analog recordings” for us to know that is the case. It’s a staggering recreation that speaks for itself. Or rather, it doesn’t speak at all, and that’s part of what makes it so creepy. Everything from the frail shutter speed to the exposed scratches, dust, and hair that makes…