Kieli, a girl shunned for her ability to perceive spirits, finds solace in her spectral dorm mate Becca. Their solitary existence shifts when they encounter the enigmatic Harvey, also gifted with the sight of ghosts. Unveiling his identity as one of the fabled Undying, relentless warriors pursued by the Church, Harvey draws Kieli into a journey to pacify the soul of a possessed corporal through an ancient radio. In this unlikely companionship, Kieli discovers a sense of belonging she has long sought, while Harvey, in turn, finds a newfound purpose in her presence.