Diane is recently widowed after 40 years of marriage. Vivian enjoys her men with no strings attached. Sharon is still working through her decades-old divorce. Carol's marriage is in a slump after 35 years. The lives of these four friends are turned upside down after reading the infamous "50 Shades of Grey." From discovering new romance to rekindling old flames, they inspire each other to make their next chapter their best chapter yet.