1989. When Louise first notices the new girl who has mysteriously transferred late into their senior year, Maria seems to be everything Louise's other friends aren't. Authentic. Funny. Brash. Within just a few days, Maria and Louise are on their way to becoming fast friends. 2016. Louise receives a heart-stopping email: Maria Weston wants to be friends on Facebook. Long-buried memories quickly rise to the surface: Those first days of their budding friendship; cruel decisions made and dark secrets kept; the night that would change all their lives forever. Louise has always known that if the truth ever came out, she could stand to lose everything. Her job. Her son. Her freedom. Maria's sudden reappearance threatens it all, and forces Louise to reconnect with everyone with whom she'd severed ties in order to escape the past. But as she tries to piece together exactly what happened that night, Louise discovers there's more to the story than she ever knew. To keep her secret, Louise must first uncover the whole truth, before what's known to Maria -- or whoever is pretending to be her -- is known to all.