tartan noir
n.— «Scottish detective fiction, or Tartan Noir as it’s called, with its brooding sensibility, brutal humor and fixation on the nature of guilt and punishment, has more in common with the Russian novel than it does with traditional detective writing.» —“Denise Mina and the rise of Scottish detective fiction” by Dinitia Smith New York Times July 23, 2006. (source: Double-Tongued Dictionary)
Further reading
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‘Tartan noir’ is a famous literary genere, made famous by writers like Irvine Welsh, Ian Rankin.
The catchword itself I’ve seen in a book review in the men’s magazine GQ.