Horror, Thriller, Sci-Fi & True Crime Coming to Netflix U.S. in September 2026

September 2026 is bringing plenty of dark entertainment to Netflix U.S., with everything from classic slashers and supernatural horror to serial killers, psychological mysteries, and disturbing true-crime stories.

This month is especially exciting for genre fans thanks to several major additions. Monster: The Lizzie Borden Story is the fourth installment of Ryan Murphy and Ian Brennan’s Monster anthology, putting one of America’s most infamous murder cases in the spotlight. We’re also looking forward to the Argentinian horror series My Sad Dead, from filmmaker Pablo Larraín, as well as Unabomber, a new series inspired by the true story of Ted Kaczynski and the FBI investigation that eventually brought him to justice.

And if you’re looking for some familiar horror favorites, September has those covered too. Ready or Not, Smile 2, The Texas Chainsaw Massacre, Alien, Jaws, Resident Evil, and Oculus are all heading to Netflix.

Here’s everything horror, thriller, sci-fi, and true crime fans should add to their watchlists in September 2026.

September 1, 2026

Ready or Not (2019)

Samara Weaving is unforgettable in this darkly funny horror thriller about a young bride who discovers that her new family has a very deadly wedding-night tradition.

What starts as a game of hide-and-seek quickly turns into a fight for survival until dawn.

Greta (2018)

Isabelle Huppert and Chloë Grace Moretz star in this psychological thriller about an apparently lonely widow whose friendship with a young woman takes an increasingly disturbing turn.

Because sometimes returning a lost handbag is a very bad idea.

Unfriended (2014)

The entire horror movie unfolds through a computer screen as a group of friends are terrorized by the supernatural presence of a bullied classmate seeking revenge.

A particularly fitting nightmare for anyone who has ever had a suspicious Skype notification.

The Rite (2011)

Anthony Hopkins stars as an unconventional exorcist who introduces a skeptical seminary student to the terrifying realities of demonic possession.

Gothika (2003)

Halle Berry plays a criminal psychiatrist who wakes up as a patient in her own institution and is accused of murdering her husband. The problem is that she has no memory of doing it.

Valentine (2001)

Jamie Blanks’ slasher follows a group of women who are stalked by a killer wearing a Cupid mask. As the murders pile up, the survivors realize their past may have finally caught up with them.

Cruel Intentions (1999)

Sarah Michelle Gellar, Ryan Phillippe, and Reese Witherspoon star in this deliciously nasty teen thriller about wealthy young people playing dangerous games with each other’s emotions.

The Texas Chainsaw Massacre (1974)

The horror classic that introduced the world to Leatherface returns to Netflix. A road trip through Texas becomes a nightmare when a group of friends crosses paths with a murderous family.

Resident Evil Movie Collection

Netflix is also adding a substantial chunk of the Resident Evil movie universe:

• Resident Evil: Extinction (2007)
• Resident Evil: Afterlife (2010)
• Resident Evil: Retribution (2012)
• Resident Evil: Damnation (2012)
• Resident Evil: Vendetta (2017)
• Resident Evil: Death Island (2023)

That’s plenty of zombie-infested action for a franchise marathon.

Alien Movie Collection

Two essential sci-fi horror classics also arrive:

• Alien (1979)
• Aliens (1986)

If you need a reminder of why venturing into deep space is generally a terrible idea, these two films have you covered.

Jaws Movie Collection

The original shark franchise is also swimming onto Netflix:

• Jaws
• Jaws 2
• Jaws 3
• Jaws: The Revenge

Four movies. One ocean. A lot of reasons to stay on dry land.

September 3, 2026

Smile 2 (2024)

Naomi Scott stars as global pop sensation Skye Riley, whose life begins to unravel after she becomes the latest target of the terrifying curse introduced in the first Smile.

Parker Finn returns to direct this psychological horror sequel, which takes the creepy smiling phenomenon into the world of fame, performance, and public scrutiny.

Read our review >

September 9, 2026

Prom Night (1980)

Jamie Lee Curtis stars in this classic slasher about a masked killer targeting teenagers at their high school prom.

If you’re building a list of essential old-school slashers, this one deserves a place on it.

September 10, 2026

The Perfect Lie: Season 1 (2026)

Four seemingly perfect couples are forced to question everything they know about one another after one of their friends dies in a house fire.

Perfect lives tend to make excellent thriller material.

September 15, 2026

I Survived A Serial Killer: Season 1

A&E’s true-crime docuseries features survivors who lived through encounters with serial killers and lived to tell their stories.

September 17, 2026

Plastic Beauty: Season 1 (2026)

This Japanese mystery series follows a gifted emergency-room surgeon who moves into the world of cosmetic medicine, where her clash with a celebrity doctor exposes the darker side of beauty, ambition, and greed.

Stranger Things: Tales From ’85 – Season 2 (2026)

With Valentine’s Day on the way, the gang must uncover the truth behind ghostly apparitions and a swarm of strange creatures causing chaos around town.

Monster: The Lizzie Borden Story (Limited Series)

One of America’s most infamous murder cases becomes the subject of the fourth installment in Netflix’s Monster anthology.

Ryan Murphy and Ian Brennan return with Monster: The Lizzie Borden Story, focusing on Lizzie Borden, the Massachusetts woman accused of murdering her father and stepmother with an axe in 1892.

The case became one of the most notorious murder mysteries in American history, inspiring endless speculation about what actually happened inside the Borden family home.

With the Monster anthology tackling another infamous real-life figure, this is easily one of September’s biggest true-crime releases.

September 24, 2026

Delusion: Season 1 (2026)

A woman’s life spirals when her father’s dementia makes him a prime suspect in a murder — and the villagers believe he’s possessed by a malevolent ghost.

House at the End of the Street (2012)

Jennifer Lawrence stars in this psychological thriller about a mother and daughter who move into a seemingly peaceful neighborhood, only to discover that their new home sits next to the site of a brutal double murder.

Naturally, the past isn’t quite finished with the neighborhood.

Oculus (2013)

Forget haunted houses. This time, the real nightmare is a mirror.

Karen Gillan stars in Mike Flanagan‘s mind-bending psychological horror movie about a woman convinced that an antique mirror is responsible for destroying her family.

And the mirror has no intention of letting her prove it.

My Sad Dead – Limited Series (2026)

One of the most intriguing horror series arriving in September comes from Argentina.

My Sad Dead follows Emma, a woman who can see the dead. When her niece arrives, her unusual ability becomes connected to something much bigger, affecting thousands of lives.

The chilling miniseries comes from filmmaker Pablo Larraín and is based on works by acclaimed Argentine writer Mariana Enriquez.

That combination alone makes this one worth keeping an eye on. Expect supernatural horror with a distinctly unsettling literary edge.

September 25, 2026

The Final Problem – Limited Series (2026)

Set in 1959, this Spanish mystery thriller strands thirteen people on a small island near Mallorca after a violent storm.

When a woman is found dead at the local hotel, what initially appears to be suicide soon begins to look like murder. With nobody able to leave the island, everyone becomes a suspect.

Adding another layer to the mystery is Basil, a retired actor who once portrayed Sherlock Holmes and now finds himself trying to solve a real murder.

A closed-circle murder mystery on a storm-battered island? Yes, please.

Unabomber (2026)

Unabomber is another major September release for true-crime fans.

Inspired by true events, the series explores Ted Kaczynski’s transformation from a brilliant young Harvard student into the man who became known as the Unabomber.

Jacob Tremblay portrays Kaczynski, while Russell Crowe plays Professor Henry Murray, whose controversial psychological experiments become part of the story. Shailene Woodley stars as FBI agent Joanne Miller, who becomes involved in the investigation and the eventual manhunt.

Rather than simply focusing on the notorious crimes, the series explores the forces and experiences surrounding Kaczynski’s radicalization, isolation, and eventual identification by investigators.

With such a high-profile cast and one of the most infamous criminal investigations in American history at its center, Unabomber is definitely one to watch.

September 29, 2026

Murder in a Small Town: Seasons 1-2

A burned-out detective leaves the big city for a quiet coastal town hoping for a peaceful life.

Naturally, he gets murders instead.

The picturesque community turns out to have plenty of dark secrets, scandals, and deadly mysteries waiting beneath the surface.

September 30, 2026

The Widower: ‘Til Death Do Us Part (2026)

This chilling true-crime documentary follows a journalist and detective as they investigate the decades-long trail surrounding a charismatic killer whose relationships repeatedly ended in suspicious deaths.

The deeper they dig, the more disturbing the pattern becomes.