Wallander - Back to Front

I was delighted to learn that BBC4 is broadcasting six new film length episodes of 'Wallander' starring the masterly Krister Henriksson, who looks like a tatty old teddy treasured since childhood. My favourite Wallander actor by far. The first episode airs tonight at 9:00pm. Although this should be the last... ever. Because the programme makers in their infinite wisdom are showing 'The Troubled Man' as the first in this new series. If you have read The Troubled Man...

SPOILER ALERT

you will understand what I am getting at as it is in this, the very last Wallander book ever, that the author Henning Mankell gives Wallander his irrevocably final swansong. So, the conclusion of this first episode will have to be dramatically changed to avoid the book's devastating conclusion.

The Troubled Man would have made a fitting end to the entire Wallander saga. I seriously do not understand how they can follow this with five more episodes. It just doesn't make sense...