Brittany O’Grady (The White Lotus. It’s What’s Inside) has joined the cast of the high-concept horror film Monitor.

Writing-directing duo Ryan Polly and Matt Black make their feature debut based on their short film of the same name.

When a group of social media moderators refuse to publish a horrifying video, a demonic creature starts following them across every screen in their lives. Feeding off fear, the creature hunts them down one by one and attacks until it gets what it wants… to be let out beyond the screen.

Production is set to begin on March 10 with Philip Lozano (Cobweb, MadS) serving as cinematographer.

Marty Bowen, Wyck Godfrey, and John Fischer of Temple Hill Entertainment — the team behind Smileand Smile 2 — are producing alongside Nostromo Pictures’ Adrián Guerra (Buried). Protagonist Pictures’ Dave Bishop and George Hamiltonexecutive produce.

“We’re delighted to see cameras roll on this smart and twisted horror film that is sure to scare the hell out of cinemagoers worldwide,” said Hamilton. “Temple Hill delivers once again with a wickedly clever film that offers a timely commentary of what we experience online.”

“We’re thrilled to be diving into production on Monitor,” the Temple Hill team added. “Matt and Ryan have crafted a story that is haunting and deeply relevant.  With Brittany leading our cast, we’re confident that Monitor will be as gripping as it is terrifying.”