Review: The Stranger Upstairs by Lisa M. Matlin on September 12, 2023 Adult ARCreview BookReview Fiction +4 Gothic Horror LisaM.Matlin Mystery NetGalley PenguinRandomHouse TheStrangerUpstairs Thriller Adult ARCreview BookReview Fiction Gothic Horror LisaM.Matlin Mystery NetGalley PenguinRandomHouse TheStrangerUpstairs Thriller