Okay but that is not really a spoiler in my opinion. But maybe it's too long ago that I saw it. Nevertheless, first you have to decrypt the letters.
...there is no spoiler in art.Shiiiit, I probably must give it a rewatch, because I can´t put two and two together on this one (or somebody can explain the artwork in spoiler )
Steel looks very interesting
The most I remember from this film is strong ambience....and of course great performances....but the story geez can´t remember jack