entertainment / Monday, 18-Aug-2025

Dexter: Original Sin Introduces A Shocking Realization About Dexter Morgan Throughout The Original Series

WARNING: SPOILERS ahead for Dexter: Original Sin episode 5.

Dexter: Original Sin episode 5, "F Is For F**k-Up" reveals that Dexter let loose in his younger days, which he never did in the original series. After a strong Dexter: Original Sin premiere and a vintage double-episode release with episodes 2 & 3, the Dexter: Original episodes 4 and 5 continue to make impressive and entertaining strides for the series. Dexter: Original Sin episode 5 narrows its focus on Harry's backstory through multiple timelines.

The cast of Dexter: Original Sin is led by Patrick Gibson as the new titular protagonist alongside newcomers Molly Brown, Christian Slater, Patrick Dempsey, and Sarah Michelle Gellar. Dexter:Original Sin episode 4 extends the great momentum of episode 3 after Dexter takes out his second killer, Tony Ferrer, and Nurse Mary in the premiere episode. New episodes of Dexter: Original Sin release every Friday exclusively on Paramount+.

Dexter Never Got High Or Drunk In The Original Series (Unlike Most Other Major Characters)

Dexter chooses sobriety to maintain control of his Dark Passenger

Dexter (Patrick Gibson), staring at the knives in the kitchen in Dexter: Original Sin Season 1 Ep 5
Dexter (Patrick Gibson), staring at the knives in the kitchen in Dexter: Original Sin Season 1 Ep 5

Image via Paramount+

In the Dexter original series, several characters such as Deb, Batista, and Quinn get high or drunk at various times, but never Dexter. He'll drink occasionally, but he's always in control of himself, a point that he reiterates to Deb in Dexter: Original Sin. This just goes to show how much more difficult it became for him to control his Dark Passenger as he got older and kept killing since he couldn't risk losing that control with drugs or alcohol.

Dexter's eating habits in the original series were even more prevalent during his early killing days in Original Sin, which is how he ended up getting very high on Deb's weed brownies in the first place. This allowed him to be more open and unserious with Deb in a way that she had never seen before, which led to the two of them hanging out for the first time like true siblings, even though they technically weren't. At the start of Original Sin, Deb is humiliated for bringing Dexter to a party. Five episodes later, the close connection between Deb and Dexter, which is the core of the original series, starts to form.

Dexter Accidentally Getting High In Original Sin Season 1 Episode 5 Reveals The Real Start Of His Bond With Deb

It's the first time Deb and Dexter start hanging like they do in the original series

While Dexter getting high on weed brownies was not on many people's Original Sin bingo cards, it provides some context as to why Dexter never indulged in drugs or alcohol as an adult, living in Miami of all places. Even several of his police officer coworkers, especially Deb, find ways to take the edge off, but Dexter never risks it, knowing the consequences would be too great. That moment in Dexter: Original Sin episode 5 between Deb and Dexter is really the first time they act like their characters from the original series, which is when they've already been close for years.

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Your Rating

Dexter: Original Sin
6/10
248
9.4/10
Release Date
December 15, 2024
Network
Paramount+ with Showtime
Directors
Michael Lehmann
Writers
Alexandra Franklin, Tanner Bean, Marc Muszynski, Safura Fadavi

Cast

See All
  • Headshot Of Patrick Gibson
    Patrick Gibson
    Dexter Morgan
  • Headshot Of Christian Slater
    Christian Slater
    Harry Morgan

Dexter: Original Sin explores Dexter Morgan's early years in 1991 Miami as he transitions from student to avenging serial killer. Guided by his father, Harry, Dexter crafts a moral code and navigates a forensics internship at Miami Metro Police, all while controlling his darker impulses.

Producers
Robert Lloyd Lewis
Seasons
1

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