The last time Megan saw her youngest daughter, Emma, was on the little girl’s third birthday. Now, two years later, she sees her daughter’s face in every blonde girl she passes - at the grocery store, in car windows, at the doctor’s office. She is determined to find her daughter, but her commitment borders on obsession as she finds herself following these little girls who resemble her missing daughter.
Her inability to move on after Emma’s kidnapping has distanced Megan from her friends and family. Her two older daughters resent her relentless and fruitless search for their sister, and her husband, Peter, pleads with her to come to terms with Emma’s absence before her obsession causes the destruction of the rest of their family.
Meanwhile, in the same small town, Jack dotes on his granddaughter, Emmie, but has begun to question his wife, Dottie’s, secrecy about Emmie and her mother, Mary. As Dottie slips into dementia, Jack can’t help wonder if there is a dark secret Dottie is keeping from him.
Jack and Megan’s lives collide at the town fair when Megan snaps a photograph of a little girl with her grandparents - an act that could lead to catastrophe for both families.