Season 8 of Dexter picks up months down the road from the events that ended season seven. The first part of the season started out pretty good and then went downhill as the season progressed. As most have pointed out, the overall ending was pretty bad, so the season just gets a worse reputation than it really deserved. Jennifer Carpenter is definitely the highlight of the season. She plays Deb spiraling out of control wonderfully. She feels enormously guilty over killing LaGuerta to protect Dexter and is mad because he does not feel the least bit guilty about it. Of course, there is a new serial killer that Dexter has to contend with, as well as the psychiatrist who helped Harry come up with "the code", whose intentions are murky, to say the least. I will not spoil how the season ends, although chances are anyone reading this now is already aware. I will just say that I would have chosen a different ending to the series than was done for this one. Obviously, this was meant to be the end of the series and was for many years until the series was resurrected as a limited event miniseries in 2021.
The A/V quality of the Blu-Ray is very good, but the extras are pretty lame. There are just a handful of very short (2-3 minutes at most) featurettes and the first two episodes of the series Ray Donovan. Not nearly as much as a show that had an eight-season run should have received. Overall, the season was decent to good, with a band ending. The acting was great, but the writing most definitely was not. With those provisos, I do think it is worth watching but know that you will probably not enjoy the season as much as you did the first 3-4 seasons.