My Closeted Neighbors Disciplined & Converted Me

Parents used to advise against criticizing others with the saying "Don't cast stones in fragile residences," implying that one shouldn't condemn when hiding their own illicit actions. A narrative unfolds where the protagonist, in an act of kindness turned delivery of misdelivered parcel, stumbles upon a dark discovery within the close-knit community. Could this benevolent being perdure unsullied from the upcoming encounters, or was this unexplored facet harbored within, furtively residing in the crevices of her conscience?.