A young woman grappling with personal issues decides to take a night shift as a security guard at a deserted upscale apartment complex in a final attempt to sort out her life. Paired with a gruff security officer, she strives to keep her imagination in check while navigating the vacant corridors. However, as the night unfolds, peculiar occurrences start to take place, leading her to suspect that her experiences might be more than mere figments of her imagination.