When teenager Quinn Brenner (Stefanie Scott) senses that her late mother is trying to contact her, she seeks help from gifted psychic Elise Rainier (Lin Shaye). However, Elise's tragic past makes her reluctant to use her abilities. After Quinn is attacked by a malevolent entity, her father (Dermot Mulroney) pleads with Elise for help. With support from two parapsychologists, Elise ventures deep into The Further -- where she finds a powerful demon with an insatiable craving for human souls.