The investergation provides a complicated insight into a genuine case that is relatively new. This is also something that the series has been criticized in the media. The series is made in collaboration with those involved, which is why the name of the perpetrator is also never mentioned, as he does not deserve that credit.
The series takes place at a very slow pace, and it also does not have the advantage of the tension around whether the killer will be imprisoned, because you know he does. Likewise, the plot around Jens Møller (Søren Malling)'s daughter is not the best plot either, as it drags the series in the long run, and is not as interesting as the main plot. That said, I think the series is justified, not as a thriller, but as a pseudo-documentary.
The series takes place at a very slow pace, and it also does not have the advantage of the tension around whether the killer will be imprisoned, because you know he does. Likewise, the plot around Jens Møller (Søren Malling)'s daughter is not the best plot either, as it drags the series in the long run, and is not as interesting as the main plot. That said, I think the series is justified, not as a thriller, but as a pseudo-documentary.