"Night Listener" tackles the narrative of Armistead Maupin's most haunting page-turner, in which popular public radio storyteller Gabriel Noone (Robin Williams) develops an intense phone relationship with a young listener named Pete (Rory Culkin) and the social worker who rescued him from a life of abuse (Toni Collette). But Gabriel soon comes to the startling realization that it is quite possible that neither the boy nor his painful account of his childhood really exist.