An absolutely gripping read… both satisfying and chilling. Ellery Lloyd, author of the New York Times bestseller The Club

Meet Eva, who cant feel pain, and Anna, who cant escape it.

Everyone has heard about the case of Eva Reid. Ever since she was born, shes felt no pain: she can get a paper cut, break a limb and even give birth without feeling a single thing. Herstoryhas long captivated themindsof reporters and researchersincluding Dr. Nate Reid, Evas husband and acclaimed scientist,renowned for his work in the Pain Laboratory. Also among them is Anna Tate, a ruthless journalist with a dark past of her own.

When Eva is suddenly found dead inside her home, it raises a flurry of questionsaboutthe last night of her lifeand who mightve been involved. Anna finds herself growing increasingly obsessed with Evas case: her protected, painless existence, her promising career as a psychotherapist, and especially her toxic relationshipwiththe alluring Dr. Reid, whom Eva met and married as his former patient. But what other secrets could they be hiding?

When Dr. Reid embarks on the process of writing a book about Eva, an opportunity arises for Anna to work on it alongside him. As she slowly inserts herself into their home to uncover whats fact and whats fiction, shocking discoveries await herand not everyone may come out unscathed