The Paper Palace by Miranda Cowley Heller

It is a perfect July morning, and Elle, a fifty-year-old happily married mother of three, awakens at “The Paper Palace” — the family summer place which she has visited every summer of her life. But this morning is different: last night Elle and her oldest friend Jonas crept out the back door into the darkness and had sex with each other for the first time, all while their spouses chatted away inside. Now, over the next twenty-four hours, Elle will have to decide between the life she has made with her genuinely beloved husband, Peter… Read more.