At 24, Nicole “Nic” Monroe lives alone in a dinky apartment in her hometown of Mishawaka, Indiana, she’s just gotten a DWI, and she works the same dead-end job she’s been working since high school. Everyone has felt sorry for her for the last seven years --- since the day her older sister, Kasey, vanished without a trace. The only real clue in her disappearance was Jules Connor, another young woman from the same area who disappeared in the same way, two weeks earlier. But with so little for the police to go on, both cases eventually went cold. Nic wants nothing more than to move on from her sister’s disappearance and the state in which it has left her. But then one day, Jules’ sister, Jenna Connor, walks into Nic’s life and offers her something she hasn’t felt in a long time: hope.

Two decades ago, six-year-old January Jacobs was discovered in a ditch hours after her family awoke to find her gone. Her killer was never brought to justice. Margot Davies, her next-door neighbor, is now a big-city journalist, but she’s always been haunted by the feeling that she could've suffered the same fate as January. When Margot returns home to help care for her uncle after he's diagnosed with early-onset dementia, she feels like she’s walked into a time capsule. Then news breaks about five-year-old Natalie Clark from the next town over, who’s gone missing under circumstances eerily similar to January’s. With all the old feelings rushing back, Margot vows to find Natalie and solve January’s murder once and for all. But the police, Natalie’s family and the townspeople all seem to be hiding something.