You know you want to join.

M.J. Stark's life is perfect. But behind her success, there is a debilitating sense of loneliness. So when her boyfriend offers her a new life in California, she gives it a try. Once there, M.J. is left to fend for herself in a small beach town, with only the company of her elderly neighbor, Gloria.

One afternoon, M.J. discovers that Gloria has moved to Paris to honor a fifty-year-old pact. And in lieu of a good-bye, she's left an invitation to a secret club--one that reads only erotic books. Curious, M.J. accepts and meets the other members: Addie, who avoids responsibility at all costs. Britt, an overworked mom who's feeling lonely and desperate. And romantic Jules, whose fairy-tale life is slowly unraveling. As they bond over naughty bestsellers and the letters they inherit from the original club members, the strangers start to divulge the details of their own lives... and as they open up, they learn that friendship might be the key to rewriting their own stories.