Netflix's upcoming true-crime documentary series, Gone Girls: The Long Island Serial Killer, lands on March 31, and it explores one of America's most notorious serial killer cases. For years, the brutal murders of several women in Long Island, New York went unsolved, with law enforcement stuck for leads in the case. In 2023, police finally arrested and charged an architect called Rex Heuermann with four murders, while continuing to investigate his potential involvement in the remaining cases.