When outspoken queer screenwriter Allina Green (Helena Howard) is chosen to write the final installment of the legendary slasher franchise The Red Mask, outrage and online death threats from die-hard fans create a rift in her relationship with her reserved fiancée, Deetz (Inanna Sarkis). Desperate for a creative breakthrough, the pair escape to a secluded Airbnb, where Allina concocts a dangerous game designed to unlock her writer’s block. But when two uninvited houseguests crash the scene, the weekend turns dark and the twisted game devolves into a duel to the death.