Pretty Little Liars: Original Sin_
"It's gonna be a killer summer."
Twenty years ago, a series of tragic events almost ripped the blue-collar town of Millwood apart. Now, in the present day, a group of disparate teen girls finds themselves tormented by an unknown Assailant and made to pay for the secret sin their parents committed two decades ago, as well as their own.
Created By
Roberto Aguirre-Sacasa, Lindsay Calhoon Bring
Network
HBO Max
Episodes
18
Updated Feb 16, 2026
WHERE TO WATCH
DROPTHE_ GOSSIP
Overview
Pretty Little Liars: Original Sin has 2 seasons with 18 episodes spanning 2022-2024.
Rating
With a 7.8/10 rating from 245 votes, Pretty Little Liars: Original Sin is considered highly rated.
Year context
Pretty Little Liars: Original Sin first aired 4 years ago in 2022.
CAST (7)
SEASONS (2 seasons, 18 episodes)
SEASON 1
01
Chapter One: Spirit Week
In 1999, a group of friends is rocked by the sudden death of one of their own. Twenty-two years later, their daughters are pushed together…
02
Chapter Two: The Spirit Queen
As Imogen and her newfound friends plot revenge against a mutual nemesis, Karen and her twin sister Kelly hatch an insidious plan of their own.
03
Chapter Three: Aftermath
In the wake of Spirit Week, Imogen unearths long-buried truths on her path to unmask the mysterious “A.” After Sheriff Beasley closes in, Noa, Faran,…
04
Chapter Four: The (Fe)male Gaze
After their punishment comes to an end, the girls cement their friendship when Imogen needs them most.
05
Chapter Five: The Night He Came Home
Desperate to keep her mother’s house, Imogen throws a Halloween party to raise cash.
06
Chapter Six: Scars
As Imogen and Tabby dig into the mystery surrounding Angela Waters, Faran deals with the scars of her past. After Shawn confronts Marjorie, Noa questions…
07
Chapter Seven: Carnival of Souls
As the Millwood carnival approaches, Mouse and Tabby each struggle with secrets, and Noa notices Shawn isn’t himself. Meanwhile, Imogen considers her baby’s future, and…
08
Chapter Eight: Bad Blood
The friends work together to uncover Imogen and Tabby’s assailant during the Annual Thanksgiving Millwood High Blood Drive. Later, Sidney confronts Tabby about her secrets.
09
Chapter Nine: Dead and Buried
Despite coming clean about “A,” the friends find their troubles are far from over – especially as the results of the group’s clandestine blood drive…
10
Chapter Ten: Final Girls
As “A” doubles down, the friends must work quickly to uncover the link between Angela Waters’ death, their mothers, and their mysterious foe… before it’s…
SEASON 2Summer School
01
Chapter Eleven: Spookyspaghetti.com
The PLLs await the results of A's trial and a much-needed break – only to be cursed with a fate worse than death ... summer…
02
Chapter Twelve: Summer Lovin
Heeding Dr. Sullivan's advice, the PLLs make the most of their summers. Meanwhile, Imogen forges a new identity away from her closest friends.
03
Chapter Thirteen: Sweet Sixteen
As the PLLs plan Mouse's surprise sixteenth birthday party, Tabby and Imogen face boy problems, Noa clashes with Jen and Faran spills her secret.
04
Chapter Fourteen: When a Stranger Calls Back
Still shaken from her encounter with Bloody Rose, Mouse searches for the real Rose Waters. Meanwhile, Imogen keeps tabs on Dr. Sullivan, Tabby works on…
05
Chapter Fifteen: Friday the 13th
A disturbing discovery causes the PLLs to doubt Dr. Sullivan. Meanwhile, during Tabby's movie marathon, Noa is forced to make a brutal decision.
06
Chapter Sixteen: Hell House
After discovering that Kelly's church is using her former home for their disturbing "Hell House", Imogen springs into action, while Mouse and Ash plan a…
07
Chapter Seventeen: The Bogeyman
Still shaken from Hell House, Imogen learns about Dr. Sullivan's secret ties to A, while the PLLs set out to uncover Bloody Rose's identity.
08
Chapter Eighteen: Final Exam
The PLLs take a final stab at their list of suspects, and through a harrowing night will discover the identity of Bloody Rose Waters once…
SERIES INFO
2
Seasons
18
Episodes
Canceled
Status
CREW
Creator
Roberto Aguirre-Sacasa
Creator
Lindsay Calhoon Bring
NETWORKS (2)
HBO Max
Max
DETAILS
First Aired
Last Aired
Status
Canceled
Seasons
2
Episodes
18
Language
English
Country
Rating
7.8/10 (245 votes)
Popularity
3
IMDB
FREQUENTLY ASKED QUESTIONS
What is Pretty Little Liars: Original Sin about?
Twenty years ago, a series of tragic events almost ripped the blue-collar town of Millwood apart. Now, in the present day, a group of disparate teen girls finds themselves tormented by an unknown Assailant and made to pay for the secret sin their parents committed two decades ago, as well as their own.
Where can I watch Pretty Little Liars: Original Sin?
Pretty Little Liars: Original Sin is available on Max, Crave, Movistar Plus+ Ficción Total , RTL+ Max Amazon Channel. Availability varies by region.
How many seasons does Pretty Little Liars: Original Sin have?
Pretty Little Liars: Original Sin has 2 seasons with 18 episodes total.
Who created Pretty Little Liars: Original Sin?
Pretty Little Liars: Original Sin was created by Roberto Aguirre-Sacasa and Lindsay Calhoon Bring.
Who stars in Pretty Little Liars: Original Sin?
The cast of Pretty Little Liars: Original Sin includes Bailee Madison, Chandler Kinney, Maia Reficco, Zaria, Malia Pyles.
What is the rating of Pretty Little Liars: Original Sin?
Pretty Little Liars: Original Sin has a rating of 7.8 out of 10 based on 245 votes on TMDB.
Is Pretty Little Liars: Original Sin still running?
Pretty Little Liars: Original Sin was canceled.
GENRES (2)
Drama
Mystery
Bailee Madison →