‘Dexter: Original Sin’ Season Finale Explores Dexter’s Dark Origins and Sets Up Next Chapter

The prequel series finale delves into Dexter Morgan's early evolution as a serial killer while leaving room for future storylines in the franchise.

The season finale of 'Dexter: Original Sin' showcases Dexter Morgan's first major kill, marking a pivotal moment in his evolution as a serial killer.
The episode explores Dexter’s moral code, particularly his aversion to harming children, as he chooses to save a child over pursuing his own urges.
Key relationships within the Morgan family, including Harry’s mentorship and Debra’s decision to join Miami Metro, are further developed in the finale.
The show revisits the character of Brian Moser, Dexter's brother, tying his backstory to the events of the prequel and setting up his future role in the original series.
Producers and cast express interest in continuing the prequel series, with potential plans to explore Dexter’s further development and connections to the original show.