BloodStream, the niche streaming home for all things sci-fi, thriller, and horror, is officially hijacking the 9:16 format. On Sunday, June 28, the platform premieres Nightmarish. It is the first-ever serialized horror anthology shot natively for your phone. There’s no widescreen cropping, no wasted space, just pure, thumb-driven terror designed to be binged from top to bottom.
Horror Fills the $8 Billion Gap.
The vertical video boom topped $8 billion globally in 2025. It was driven almost entirely by the soap-opera suds of apps like ReelShort and DramaBox. But while 18-to-30-year-olds are consuming horror and thrillers at twice the rate of romance, the vertical space has remained surprisingly devoid of scares.
BloodStream is fixing that. Instead of retrofitting old content for mobile, they’ve engineered a show meant to scare you one swipe at a time.
“The micro-drama wave proved audiences will watch a full story one vertical episode at a time. It just hasn’t really scared them yet,” says Shaked Berenson, CEO of Studio Dome, BloodStream’s parent company. “Nightmarish is the first show we’ve built to be watched in sequence… a horror-native platform is exactly where serialized vertical horror should live.”
Inside the Episodes
Because the vertical format tends to choke out sprawling car chases and wide-angle fight scenes, Nightmarish leans heavily into what actually works on a phone screen: claustrophobia, paranoia, and sudden, intimate jolts.
Each self-contained episode is a bite-sized nightmare:
Sleepyhead: A young woman chases a viral online trend (a rookie mistake) and catches a curse she must pass on to someone else before it claims her.
The Mare: A fresh start goes horribly wrong when a woman’s nightmares begin leaving very real, very bloody wounds on her body.
From Festival Darlings to Phone Screens
The series is produced by Atlanta-based studio Nightmarish. It was founded in 2024 by filmmakers Madison Hoover and Jaime Lucero Jr. The duo launched the studio after their debut short, The Mare, took off. By collaborating with a killer ensemble of emerging Atlanta talent—including Hoover, Lauren Lox, Jason Williams, Emily Topper, and Rachel Faulkner—they aim to prove short-form horror can pack the punch of a feature film.
Native-Born Terror: “Vertical horror only works when every frame is built for the phone in your hand—no wasted seconds, the scare landing before you can look away,” says Hoover.
A Launchpad for Talent: “Every episode is a complete story with a feature-length world behind it”, adds Lucero Jr. “A BloodStream release gives the actors and crew an audience that usually only exists for one weekend on the festival circuit.”
Nightmarish premieres Sunday, June 28, on BloodStream. Prepare your thumbs for terror.
