After the body of a teen is found at a local party spot, theories surrounding her death spread. Without evidence, the case goes cold for 30 years. When the investigation heats back up, authorities bring the killer to justice for not 1 but 2 murders.

After leads dry up in a missing person case, Ennis, Texas detectives discover a severed body part at a nearby lake. After a DNA match is confirmed, they begin to uncover a rippling relationship that may have led to the death of a beloved father.