After the sudden death of their father, four siblings are hidden away in a cramped attic by their devout and vengeful grandmother, setting the stage for a harrowing struggle for survival. Forced to endure years of confinement, the children must navigate the psychological manipulation of their mother and the physical decay of their environment. The narrative, presented through the eyes of the eldest daughter, Cathy, tracks the slow erosion of their innocence as they attempt to maintain their humanity while isolated from the outside world. Their primary opposition stems from the rigid, fanatical expectations of their grandmother and the increasingly erratic, self-serving behavior of their mother.

This work is widely recognized for its disturbing premise and its significant influence on the gothic horror genre. Readers often highlight the intense emotional manipulation and the unsettling nature of the family dynamics presented within the narrative. The story is frequently noted for its ability to provoke strong reactions regarding the morality of the characters and the cruelty of the situation. It remains a staple of dark fiction, often discussed for its exploration of how extreme isolation shapes the development of young minds.