Thirty-six-year-old high-school teacher Lauren seems to have it all. She moved back to Waverly, a small seaside town just north of Boston, several years ago. She has a great career and has finally found true love. Lauren's wedding is just a few weeks away when one of her students goes missing, and when his body is found a few days later, she suddenly becomes a person of interest.

Her fiancé David is a former minor-league pitcher turned stockbroker who is excited to settle down with Lauren. But when the missing student is found dead and the media turns its attention even more closely on Lauren, David is surprised to discover that Lauren hadn't told him everything about her past.

With the help of his ninety-one-year-old grandfather, who is a retired town sheriff, and his best friend Jake, the current assistant sheriff, David sets out to find the truth.