The Toronto International Film Festival is traditionally where you go to see the future of film, but this year it doubled as a sneak preview of what's coming to your streaming queue - specifically, a whole lot of horror. Four different streamers - Peacock, Netflix, Amazon, and AMC - all premiered early looks at upcoming horror-adjacent series at TIFF, making it abundantly clear that October has become the streaming equivalent of a blood-soaked turf war.

Perhaps the most high-profile entry is Carrie, coming to Prime Video. It's an adaptation of the classic Stephen King novel, which has already been turned into no fewer than three feature films, but this version is notable for who's helming it: Mike Flanagan. Flanagan has done a handful of King adaptations before - including Doctor Sleep and The Life of Chuck - but he's perhaps best-known for his Netflix limited series work, including The Haunting of Hill House, Midnight Mass, and The Fall of the House of Usher. Those series came out on a near-annual basis between 2018 and 2023, making Flanagan's particular blend of dramatic horror a Netflix October staple. Then, in 2022, Amazon poached him for Prime Video, and Carrie is the first fruit of that arrangement, starting streaming on October 7th. It still tells largely the same story - a young girl's destructive psychic powers awaken after getting bullied in high school - but it's been thoroughly modernized, with much of the bullying happening in cyberspace. And since it's a series instead of a movie, it stretches the story out, giving it room to explore teen drama and, of course, plenty of opportunities for Flanagan's trademark lengthy monologues. Having seen only the premiere episode, the combination of flavors works surprisingly well together.

Netflix, meanwhile, has filled the Flanagan-shaped gap with Below, premiering October 8th - just a day after Carrie. The first two episodes (of six total) suggest a different kind of story compared to Hill House, but with a similarly dark and mysterious energy. Below is about what seems to be an ancient sea creature terrorizing a small fishing village in Newfoundland, on the east coast of Canada. From what I've seen, the show does a great job steadily building the terror of the creature's reveal while mixing scares with a healthy dose of family drama, led by Josh Hartnett as a struggling fisher trying to keep his family together.

Then there's Peacock, joining the fray with a prequel series. Fans of Friday the 13th will know that Jason's mom plays a pivotal role in the very first film, and the new show Crystal Lake explores how she got to that point. It stars Linda Cardellini as Pamela Voorhees, a single mother thrown into a pit of despair and disbelief when her young son drowns. I went in thinking I didn't really need to know more about Jason's mother's backstory, but the first two episodes that premiered at TIFF - and Cardellini's performance in particular - have me second-guessing that. Crystal Lake is surprisingly tense and dramatic, but given its connection to Friday the 13th, it also has slasher-movie levels of gore and gross-out deaths, ones so brutal they approach comedy. If nothing else, it gets off to a very strong start. All episodes hit Peacock on October 15th.

Rounding out the list is Yaga, a supernatural detective series coming to AMC Plus on October 23rd. Unfortunately I wasn't able to catch the premiere screening, but it does seem promising, with a cast that includes Carrie-Anne Moss and Heated Rivalry's Hudson Williams, and a very intriguing trailer.

What has become abundantly clear in 2026 is that horror is big business. The likes of Backrooms and Obsession have exploded at the box office, while Widow's Bay had a dominating night at the Emmys. So it only makes sense that streamers are continuing to capitalize on the trend, using TIFF as a showcase event. October is going to be a very busy month for horror fans - and for anyone who prefers their streaming queues with a side of existential dread.