I believe that the reason this show lost massive viewership (including mine), and wasn't renewed for a 4th season is because Season 3 destroyed the balance between reality and fiction. I'll explain, what was so compelling about seasons 1 & 2 was that the show maintained a deeply unsettling psychological and imaginative undertone, but the storyline was moving forward and evolving. Simply put; there was enough action and gorey events to keep us excited and entertained, and enough oniric and metaphorical elements to hypnotize our senses and engage our intellect. Season 3 lost it's way, as it seems to take place in a dream-like place where nobody stays true to form, nothing is what it seems, and everyone lives in their own head... it's like they all died at the end of season 2, and now reside in their own version of Dante's Inferno (Hell) . Just as the writers lost interest and checked out; we simply didn't care about what happened to the characters anymore.