A woman’s life fractures when she witnesses a miraculous event that defies her rational worldview and threatens her sanity. Marie Davenport, a doctor’s wife, finds herself caught in a crisis of faith and reality after her husband survives a near-fatal accident. As she navigates the aftermath, she encounters a series of inexplicable occurrences that suggest a divine or supernatural intervention. The narrative follows her struggle to reconcile these events with her secular existence, while external forces—including religious authorities and skeptical observers—scrutinize her claims. The story utilizes a third-person perspective to maintain a tension between the protagonist's internal psychological state and the external physical world.

Discussion often centers on the ambiguity of the central miracle and whether the events are manifestations of divine power or psychological breakdown. Readers frequently highlight the clinical precision of the prose, which contrasts sharply with the irrational nature of the plot. Critics often note the author's ability to maintain suspense without relying on traditional genre tropes. The book is frequently cited for its exploration of how belief systems shape individual perception and identity. Many readers appreciate the lack of easy answers, finding the open-ended nature of the conclusion consistent with the narrative's focus on the limits of human understanding.