A troubled man named Jonah, who once led a normal life as a hotel concierge and family man, becomes increasingly discontented with his mundane existence. Struggling to provide for his wife and young daughter while dealing with a demanding night-shift job, Jonah faces growing paranoia fueled by late-night conversations with a mysterious drifter. The drifter's apocalyptic rants about an impending cosmic event begin to influence Jonah's thoughts, causing him to question reality and his place in the world. As Jonah's grip on sanity loosens, he becomes convinced that escaping the expectations and limitations of his current life is the only solution.

Transformed by his fear and paranoia, Jonah embarks on a journey that leads him to become Buster, an enigmatic mountain man evading authorities in a remote wilderness. Through a series of flashbacks and surreal visions, the story weaves together his past and present, exploring themes of existential crisis, mental deterioration, and the quest for freedom. The narrative shifts between these two timelines, slowly revealing the harrowing sequence of events that drove Jonah to ultimately adopt a new identity and live in isolation.