Mouse is tasked with clearing out her deceased grandmother's hoarder house, only to discover a hidden journal detailing terrifying creatures and impossible horrors. Tasked with this grim duty, Mouse finds herself confronting not only the overwhelming clutter of a life unlived but also the chilling reality of her step-grandfather's journal entries, which describe monstrous entities lurking in the surrounding woods. As she encounters these very creatures, Mouse must find the courage to face them, armed only with her wits and her dog, to survive the escalating terror and escape the house alive.

The novel has been praised for its effective blend of folk horror and creature feature elements, drawing comparisons to classic horror narratives while maintaining a distinct voice. Reviewers often highlight the author's ability to build suspense and deliver genuinely unsettling moments, particularly through the descriptions of the monstrous entities and the oppressive atmosphere of the grandmother's house. The narrative's focus on a relatable protagonist facing overwhelming, inexplicable terror resonates with readers who appreciate a more character-driven approach to horror. The story is frequently cited as a strong example of modern horror that taps into primal fears and the uncanny.