When veterinarian Rachel Goddard and Deputy Sheriff Tom Bridger take teenagers on an outing to clean up roadside trash in rural Mason County, Virginia, they make a grisly discovery: the plastic-wrapped body of a young woman. One girl peers at the face through the plastic and screams. The corpse is her sister. During Tom's investigation, questions arise. Was it random, or was she killed because she was working to prove that a Mason County man was wrongly convicted of murder?