Diane is recently widowed after forty years of marriage, Vivian enjoys her men with no strings attached, Sharon is still working through her decades-old divorce, and Carol's marriage is in a slump after thirty-five years. The lives of these four lifelong friends are turned upside down after reading 50 Shades Of Grey as part of their monthly book club. Catapulted into a series of outrageous life choices, from discovering new romance to rekindling old flames, they inspire each other to make their next chapter the best chapter.