What should be a cozy and fun-filled weekend deep in the English countryside takes a sinister turn in Ruth Ware's suspenseful, compulsive, and darkly twisted psychological thriller. Leonora, known to some as Lee and others as Nora, is a reclusive crime writer, unwilling to leave her "nest" of an apartment unless it is absolutely necessary. When a friend she hasn't seen or spoken to in years unexpectedly invites Nora (Lee?) to a weekend away in an eerie glass house deep in the English countryside, she reluctantly agrees to make the trip. Forty-eight hours later, she wakes up in a hospital bed injured but alive, with the knowledge that someone is dead. Wondering not "what happened?" but "what have I done?", Nora (Lee?) tries to piece together the events of the past weekend.