The decomposed body of a San Francisco businessman is found floating in the California Aqueduct in Tracy, CA. Investigators initially suspect a family member, but without evidence, the case goes cold and It takes detectives several decades to find the real killer.

Mike Dixiano is heartbroken when his wife, Angela, dies from organ failure after a lifelong battle with drugs and alcohol. While friends and family grieve Angela's death, investigators can't find a death certificate and begin to suspect her husband.