On June 7, 2021, Alec Murdaugh returned home to find his son Paul and his wife Maggie had been brutally murdered. A distraught Alec told police that he had just arrived home and suspected that they had been killed in retaliation for his son’s involvement in the death of Mallory Beach. In part 2, Marina details how the police investigation into the double homicide led them to realize that Alec’s story wasn’t quite adding up, and soon, the information uncovered as a result of the investigation would leave even Alec’s closest family and friends wondering how they could have been fooled for so many years.