Filmed on location in Gothenburg, Sweden, Längs Ett Spår av Blod follows Asme through a tense 24 hours of drugs and violence.  The directors wanted to tie the various locations together more with a bleach bypass look, referencing Se7en and other films where the bleach bypass was done at a stage of the process where it didn't push the highlights or desaturate quite so much, and instead mostly just had really thick blacks.