'Dexter' Season 8 Spoilers: 'This is What Happens to a Serial Killer,' Says Showrunner (VIDEO)

The season eight premiere of Showtime's hit drama "Dexter" is set to air next week, with many fans eager to know what will happen. The cable network released a preview that promises more drama, more emotion, and more gore. Spoilers are below.

The promotional ad is as creepy as ever, with slow crawling music and a fair amount of blood. It seems as if Dexter will undergo his share of emotional upheaval this season, as the promo shows many instances of his more human side.

The Showtime drama's showrunner, Scott Buck, spoke with Entertainment Weekly about what season eight holds for the double-edged Dexter character.

"Dexter is a character who has evolved so much over the years that's he's almost unrecognizable to who he was in the beginning when he was in the brain of a psychopath. We've gradually seen him evolve and become more human," Buck explained. "As that's happened, the show itself has become more real because we're seeing it through Dexter's eyes."

"The trick of the show is that he's a likable serial killer," he continued. "But we don't ever want our audience to forget that he is a serial killer and I think we take him on that final journey this season. This is the person you've been loving all these years, but this is ultimately what happens with a serial killer," the showrunner told Entertainment Weekly.

Season 8 will be the final season of "Dexter." Buck spoke about what viewers can expect for the end of the show.

"I think ideally it will make our audience sit back and see Dexter a little more clearly than before. People love him for what he does, there's a lot of wish fulfillment, I think [the ending] will help you see him more of as an actual person. It feels like the exact ending we should be doing. It will be pretty clear and understandable and should absolutely make sense to everybody watching it," he said.

To catch the premiere of the last season of "Dexter," tune into Showtime at 9 p.m. on June 30. Click here to see the season eight preview released by Showtime.