Set in the Aokigahara Forest, a real-life place in Japan where people go to end their lives. Against this backdrop, a young American woman comes in search of her twin sister, who has mysteriously disappeared. Despite everyone's warnings not to "stray from the path," Sara dares to enter the forest to discover the truth about her sister's fate, only to be confronted by the angry and tormented souls of the dead who now prey on anyone who crosses their paths.