A kid walks into your bookstore and… guess what? He’s your son. Surprise! It’s a huge surprise to his adoptive mother, Monica, who thought she had a close relationship with Matthew. But apparently, he felt the need to secretly arrange a vacation to Cape Cod for the summer so he could meet his birth mother... It’s also a surprise—to say the least—to Harlow, the woman who secretly placed her baby for adoption so many years ago. She runs a bookstore with her grandfather, and is more or less happily single, though she can’t help gravitating toward Grady Byrne. He’s moved back to town, three-year-old daughter in tow, no wife in the picture. But she’s always figured her life had to be child-free, so that complicates things. When Matthew walks into Harlow’s store, she faints. Monica panics. And all their assumptions—about what being a parent really means—explode.