I thought it was utterly, gobsmackingly amazing. I just hadn't expected that. The Guardian blog said that they were intending to kill her off until half way through the filming, but that ending was much more of a surprise. I thought it was sort of logical for her to kill hin as he probably wasn't going to be brought to justice or maybe it was because she didn't want a life of domestic bliss, new partner, joining a Danish grandparent's forum etc....
It seemed a bit unlikely that she would get away on his special branch pass and also not sure how taking out the sim card helped when she presumably wasn't going to bump off the pilot, but still.
I have thought some of this series was a bit similar to the first one and here were too many flashlights in creeply places, black cars belonging to party workers etc, but the ending was just terrific. Fantastic acting too.
Roll on Borgen in January.