It is the 1990s, and Kathy Rain is a journalism student returning to her hometown of Conwell Springs after the death of her grandfather Joseph Rain. The circumstances of his final years make no sense—a vital man reduced to a wheelchair and disconnected from reality. Armed with her motorcycle, a cigarette, and a notepad, Kathy pulls on a thread that unravels into something far darker: a young artist who took a secret to her grave, an alarming number of people in the area losing their minds, and a question about what Joseph Rain was really searching for on the night everything went wrong.