When a churchgoing family man's second wife is found dead in their hot tub, police look back at the suspicious drowning death of his first wife. After years of believing his father, his youngest son finally learns the horrifying murderous truth.

A rescue mission of an abducted woman turns macabre when two dead women are found in the house. During the interrogation, the killer reveals the location of more bodies. His half-sister opens up about a dysfunctional childhood that shaped a serial killer.