Emma Wetherby lives in New Salem, Massachusetts, with the local police chief. While working as an archivist at the historical society, items go missing, old grudges are stirred up, and family secrets threaten to surface in the small town she thought she knew. Emma also finds herself with a difficult pregnancy, a reluctant partner, his ex-wife, and their children.

She suspects her co-worker, Grace, of removing items from the historical society, but before she can confront her, Grace is found dead in a display room. Emma is a person of interest in the investigation, making the father of her child, police chief Todd Mitchell, distance himself from the investigation, her, and their unborn child.

Emma needs to solve this mystery before it tears her life apart. She wades into the past to get the answers she needs. Emma must navigate her own relationships and try to find justice for Grace.