When a former pupil dies under suspicious circumstances, Jemima Shore is drawn into a web of secrets hidden within the walls of a secluded convent. Jemima Shore, a television investigative reporter, seeks to uncover the truth behind the death of Sister Miriam, whose demise leaves behind a legacy of hidden wealth and unsettling questions. She must navigate the rigid hierarchy and cloistered environment of the convent, where the sisters guard their privacy with intense scrutiny. The narrative unfolds through a traditional mystery framework, utilizing Jemima's sharp observational skills to pierce through the facade of religious devotion. She faces opposition from those within the order who prefer the past to remain buried and from the logistical challenges of investigating a community designed to exclude outsiders.

Readers frequently highlight the effectiveness of the convent setting in creating a sense of isolation and mounting tension. Discussion often centers on the protagonist's unique position as a media figure navigating a traditional, insular environment. Critics note the balance between the methodical pacing of the investigation and the atmospheric descriptions of the religious order. Many appreciate the focus on character motivations rather than purely action-oriented sequences. The narrative is often cited for its ability to maintain suspense while exploring the complexities of institutional loyalty.