There are Marxist police procedurals! 'Course, there was a reason they had Kollberg finally quit.

I haven't seen any of the adaptations, so maybe someone can tell me if the Marxism remained intact. I've been assuming not.

“We wanted to describe society from our left point of view. Per had written political books, but they’d only sold 300 copies. We realised that people read crime and through the stories we could show the reader that under the official image of welfare-state Sweden there was another layer of poverty, criminality and brutality. We wanted to show where Sweden was heading: towards a capitalistic, cold and inhuman society, where the rich got richer, the poor got poorer.” They planned 10 books and 10 books only. The subtitle would be “The story of a crime” – the crime being society’s abandonment of the working classes.

(From here)