>>62225336the 5th season is certainly the weakest but I do think the season gets a little better as it goes along. The serial killer thing backfires in certain ways that become interesting and consistent with the show's overall ideas.
I think the 5th season is best looked at as a fairly meta look at the show itself in its critique of the focus on the Dickensian aspect.
Anyway, you've come this far, are you seriously not going to just invest another 7 hours?