Descent Into Darkness.

Summer 1977. New York City. A turbulent time in the five boroughs perhaps like no other in modern history. An economic crisis, a historic blackout and the haunting presence of a brutal serial killer. In August of that year, David Berkowitz was arrested and admitted to the attacks, ending some of the pressure. Now decades later, there are new questions. Did the .44 Caliber killer really act alone?

A new Netflix series, The Sons of Sam: A Descent Into Darkness explores this theory. The Tape Room sits down with the director Joshua Zeman.