An FBI agent must return to a traumatic case to protect her family and stop a killer in this small-town Pennsylvania thriller. Ever since she fatally disobeyed orders, Supervisory Special Agent Lucy Guardino has been chained to her desk. But now a mysterious letter has arrived, hinting that a case she closed four years ago pinned a string of rapes and killings on the wrong man. Lucy jumps at the chance to re-open the case—despite orders to leave well enough alone. Her unofficial investigation takes her back to the small town where a killer took his own life along with one final victim—a mother who left behind a grieving husband and son. Could those dramatic events have all been orchestrated to protect the real killer? Now, with the lives of her own family at risk and a desperate boy out for vigilante justice, Lucy must race to uncover the truth.