Every series starts out with a basic premise – a storytelling engine that is supposed to power the show. Some shows ride that engine until, and sometimes long after, it breaks down. Others make tweaks along the way that keep things from sputtering out. Some shows will even swap their initial premise out for something totally new in the hopes that it will give the series new life going forward. The best series, however, take that initial premise and let it evolve naturally. At heart, I believe the producers of Dexter have tried to make it that sort of show.
The first season of Dexter used its original premise to great effect. That initial season was a golden time on the show where everything was still a mystery, or a possibility, or a hint of a future storyline which all stemmed from the show’s central idea. Yet, as the seasons have gone by, Dexter has faced several challenges that largely seemed organic to his two-fold identity as a secret serial killer working for the police. He’s handled a large-scale investigation into his activities. He’s tested whether he can have real relationships with others, both romantic and platonic. He’s had to balance his need to kill with his need to be a brother, husband, and father. In this way, Dexter has let its story and its protagonist grow and change in ways that feel natural to that original idea, if a bit shoehorned into season-long arcs.
But despite that evolution, Dexter has held tightly to a few pieces of its initial premise, saving them for a rainy day. Some of the biggest questions the show had asked in its very first episode have been left waiting to be answered. What if the people close to Dexter found out what he really is? What if Dexter got caught? What if his secret identity was out in the open? Season 7 of Dexter pulled the trigger on exploring the first question and thoroughly teased the second and third. And it made it a season brimming with possibilities.