3 ideas
A culture writes detective novels only when it believes crimes are solvable and order can be restored by reason and investigation. Where daily life is shaped by conflicts with no resolution, the genre's promise of closure feels false. Its fiction drifts instead toward unsolved, unnoticed, or merely endured violence.
Violence against people with thin social ties, such as migrant workers, divorced women, and the isolated, persists less because it is clever than because no one notices when they are gone. Invisibility comes before the killing and makes it possible.
The narrative first presents a predatory relationship through the victim's hopeful, ordinary point of view, so the reader reads the warning signs as romance or loneliness, just as she does. Only later does the structure show that the reader has missed the signs too. This turns the reader's own inattention into the book's subject.