Nostalgia can be severely corrosive. This is what thirty-six-year old Josh will come to find out as he wakes up in his childhood bedroom with no recollection of how he got there. As he ventures out into the world, he's dumbfounded to discover that he is ensconced in a city of memory with people from his past: teachers, camp counselors, beloved sitcom stars, and they relish Josh's presence, celebrating everything he does. He is in a personalized paradise.

In reality, Josh is in a coma. Intercut between his story, Steph, his younger sister, quarrels with their parents in a hospital room over what is to be done with her vegetative brother. Their various conversations manifest physically in his coma. The longer Josh is submerged, the more peril his brain is in as neurons die off. The familiar faces that once brought comfort will be replaced with ghoulish masks. He'll learn this place has malevolent intentions as it threatens to devour his soul.