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8.12024 · Canceled1 seasons10 episodesHD · Subtitles

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“They're catching killers. He's about to become one.”

About Dexter: Original Sin

In 1991 Miami, Dexter Morgan transitions from student to avenging serial killer. When his bloodthirsty urges can't be ignored any longer, Dexter must learn to channel his inner darkness. With the guidance of his father, Harry, he adopts a Code designed to help him find and kill people who deserve to be eliminated from society without getting on law enforcements' radar. This is a particular challenge for young Dexter as he begins a forensics internship at the Miami Metro Police Department.

Dexter: Original Sin runs for 1 season, created by Clyde Phillips. Every episode page keeps the show's order, so you can watch from the pilot to the finale without hunting for the next link. Episodes are bought individually for 1 credit.

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Episodes

Season 1 · 10 episodes

And in the beginning...

Young Dexter Morgan struggles to keep his urges in check while navigating life with his father, Harry, and sister, high-school senior Deb. After Harry has a health scare, Dexter realizes it may finally be time to fulfill his destiny.

2024-12-15 50m★ 7.9Now playing

Kid in a Candy Store

Dexter adjusts to his new job as a forensics intern at Miami Metro, as Harry returns to work after his medical leave. Deb lashes out at her dad by engaging in petty criminal behavior.

2024-12-22 47m★ 7.4

Miami Vice

Dexter goes after a loan shark with ties to Batista, as Harry is told to keep an eye on Maria Laguerta, Miami Metro's newest homicide detective. Deb throws a party to win the favor of her volleyball teammates.

2024-12-22 59m★ 7.7

Fender Bender

Dexter targets a retired mob hitman (who may still be killing), as Harry works the gruesome murder case of a 10-year-old boy. Deb sneaks into a nightclub with Sofia and meets an exciting new friend.

2024-12-29 50m★ 7.7

F Is for Fuck-Up

After a kill goes wrong, Dexter is grounded by Harry. Deb deepens her relationship with Gio, and bonds with her brother on the anniversary of their mother's death.

2025-01-05 52m★ 7.7

The Joy of Killing

Miami Metro is shaken by a kidnapping that hits close to home, as Dexter sets his sights on a killer that slipped through the cracks of the justice system. But first, Dexter must survive a double date with Deb and her new boyfriend.

2025-01-12 50m★ 7.7

The Big Bad Body Problem

Dexter needs to find a new hiding place after his most recent dumping ground is blown. Harry and LaGuerta pitch a controversial theory to Spencer, as the hunt for a missing child continues. Deb gets in trouble for an outburst in volleyball practice.

2025-01-26 49m★ 7.5

Business and Pleasure

Deb sneaks away for a trip with her mysterious boyfriend. Dexter is tasked with finding her. Harry and LaGuerta travel to Tampa to look into a potential serial killer on the loose, while Miami Metro closes in on suspects in the child kidnapping.

2025-02-02 52m★ 8.0

Blood Drive

In the fallout of a SWAT raid gone wrong, Dexter closes in on the child kidnapper. Meanwhile, Deb goes to work with her Dad... and sees Miami Metro in a new light. Harry digs deeper into the serial killer case but keeps his theory from LaGuerta.

2025-02-09 51m★ 8.0

Code Blues

Dexter races to find the missing kidnapped child before it's too late. Deb visits her godfather in the hospital and rethinks her future. Harry comes face-to-face with a serial killer... leading to a shocking result.

2025-02-16 50m★ 8.5

Season 1

Dexter: Original Sin FAQ

How much does it cost to watch Dexter: Original Sin?

Episodes cost 1 credit each. Credits are $1 each, so a full season costs the number of episodes in credits. Each episode you unlock stays in your account permanently.

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Yes. Create an account and add credits before unlocking an episode. Signing up is free and only needs an email and password.

How many seasons of Dexter: Original Sin are there?

Dexter: Original Sin has 1 season on Cineby, with 10 episodes in total. Start with season 1 below.

Where should I start watching Dexter: Original Sin?

Start with season 1, episode 1. The episode list on this page keeps the order, and the player moves to the next episode when one ends.

Can I watch Dexter: Original Sin with subtitles on my phone?

Yes. The player includes a CC menu where available, and the whole site is built for mobile. Fullscreen and picture-in-picture are supported.