The protagonist is the sole survivor of a deadly global virus that has wiped out most of the world's population. While wandering a forest alone, he begins to experience hallucinations and hears voices as his mental state deteriorates from the isolation. He finds childhood items like a Halloween mask and teddy bear that trigger memories. After encountering an unseen entity in an abandoned house, the protagonist's PTSD overwhelms him and he hangs himself, unable to cope with being the last human left alive.