The hunt for the "Son of Sam" captivated the world in the late 1970s, but the story behind one of America's most notorious serial murderers is all but forgotten -- until now. While the arrest and conviction of David Berkowitz brought the nightmare to an end for many New Yorkers, for journalist and Ultimate Evil author Maury Terry, the real mystery was just beginning. Terry, convinced Berkowitz had not acted alone, would go on to spend decades attempting to prove that the web of darkness behind the murders went deeper than anyone imagined -- and his pursuit of that elusive truth would eventually cost him everything. Filmmaker Joshua Zeman (CROPSEY, MURDER MOUNTAIN) draws on archival news footage, conversations with the people closest to the investigation, and Terry's own words and case files to tell a cautionary tale of a man who went down a rabbit hole and never came out. But was Maury Terry just chasing ghosts -- or are the true Sons of Sam still out there...E01 · Hello From the Gutters
On Aug. 10, 1977, the arrest of David Berkowitz brings an end to his killing spree in New York City, but journalist Maury Terry believes there is more to the story.
E02 · Catch .44
While David Berkowitz continues to dominate the news cycle, Maury pursues his theory about the killer's neighbour, John Carr, and uncovers a disturbing link to occult activity.
E03 · The Ultimate Evil
New leads send Maury down a twisted path, investigating a web of cults; as a so-called satanic panic grips the nation, he publishes a book.
E04 · Rabbit Hole
In 1993, Maury interviews David Berkowitz who substantiates his theories about the cult, but his obsession with the case takes a toll.