They're catching killers. He's about to become one.
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.
Browse every episode and jump into details.
Dec 15, 2024 · 50m
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.
Dec 22, 2024 · 47m
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.
Dec 22, 2024 · 59m
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.
Dec 29, 2024 · 50m
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.
Jan 5, 2025 · 52m
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.
Jan 12, 2025 · 50m
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.
Jan 26, 2025 · 49m
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.
Feb 2, 2025 · 52m
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.
Feb 9, 2025 · 51m
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.
Feb 16, 2025 · 50m
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.
Quick answers about this season's release timeline and episode lineup.
Dexter: Original Sin Season 1 premiered on December 15, 2024.
Dexter: Original Sin Season 1 has 10 episodes.
The season opens with Season 1 Episode 1, "And in the beginning...". It aired on December 15, 2024.
Go to Season 1 Episode 1