I was there for the writers guild strike of 2007-2008. The sudden nosedive in quality around that time in Season 2 is a testament to how important good writers are to good shows. I never lost hope and stuck it out to the bitter end of season 4 but this show never recovered. Take heed of my warning. Don't go past season 2, it's simply not worth it.
Brilliant crime drama. The unfolding mystery was handled excellently.
The only thing I didn't get was... What happened to the guy that had the little girl in his shed? He was last seen giving her a sandwich. I was hoping to see that Nevra got to him.