On paper, Gemma Jones' life is just like any other successful, single thirtysomething. But every day of her life, the high school history teacher can't get one thing out of her mind: the baby she gave up for adoption when she was just 16 years old. This is the year that Baby --- the only name Gemma has for her little girl --- will turn 18. And it might be the year she actually meets her daughter face-to-face. Or maybe she already has. Katie, a new student who's moved into the area, shares Gemma's hair color (bright red) and build (long and lean). She also shares the same birthday (October 3) as Baby. And they're both about to turn 18. But Gemma and Katie's mom are becoming good friends, and Gemma is concerned that their newly minted friendship will unravel fast if Katie is indeed her birth daughter.

The truth changes everything. For years Jess believed that Joe --- the father of her child and the only man she ever loved --- had abandoned her during her greatest time of need. That belief nearly destroyed her. Seventeen years later, when cleaning out her mother’s house, Jess unpacks a box of cards and letters hidden in the attic and makes a discovery that changes everything about life as she knows it. Shaken but empowered, Jess --- and her two stalwart best friends --- set out on a remarkable journey to follow a set of faded postmarks around the world. Is Joe still alive? Does he know that Jess never forgot him? Maybe their love story isn’t over. Maybe one day they’ll find each other again…