Showrunner Clyde Phillips, who is currently working on 'Dexter: Resurrection,' just set up another season of the prequel series with that ending: "We didn't know everything going in, and still don't."

After letting the police captain escape in Episode 9, we see Dexter (Patrick Gibson) follow Spencer to a massive ship, where he’s holding his son. Realizing that Dexter has caught up with him, Spencer floods the chamber where Nicky is chained, forcing the serial killer into a choice — save a child or let his urge to kill take priority.

Patrick Gibson ( The OA) beautifully tackled the role of a younger Dexter as though he were born for it, while Hall returned to provide the murderer’s inner voice. According to Original Sin showrunner Clyde Phillips (he also oversaw the first four seasons of the OG series), that running monologue is what makes the franchise so enduring.