When the members of the gifted Malory family begin to lose their innate talents, the pragmatic Joanna must navigate a dangerous underworld to uncover the source of their decline. Joanna serves as the grounded anchor for her family, forced to abandon her practical nature to confront a supernatural threat that operates in the shadows of the city. She faces physical obstacles within a subterranean labyrinth, where she must decipher clues to track the entities responsible for stealing the family's essence. The narrative follows her progression from a domestic setting into a high-stakes confrontation with the titular antagonists.

This work presents a classic narrative structure centered on the struggle to preserve individual identity against an encroaching, parasitic force. The premise suggests a focus on the tension between the mundane world and a hidden, dangerous reality lurking just beneath the surface. Readers likely encounter a story that prioritizes the protagonist's resourcefulness and logical deduction in the face of inexplicable events. The thematic core emphasizes the resilience of the family unit when confronted with a systematic attempt to strip away their defining characteristics.