Conspiracy buffs rejoice. Netflix has got you covered. Photojournalist Christian Hansen and director Zachary Treitz’s American Conspiracy: The Octopus Murders is a paranoia mother lode. Investigative reporter Danny Casolaro probed irregularities in government dealings with criminal surveillance software designer Inslaw. His 1991 death, in a Virginia hotel room with multiple slash wounds to the wrist, including some which improbably tore tendons, was ruled a suicide.

The story Casolaro was chasing involved a cabal of important people tied in with branches of the Justice Department. The claims behind the four-part documentary series reach beyond the initial crime. The chase runs into almost every suspicion held against government agencies, and the shadow power they hold, by journalists and the public at large. Included inside American Conspiracy is the Holy Grail of every scholar of the John F. Kennedy assassination.

The Legend of the “Real Zapruder Film”

“Oh, the Zapruder film,” Cheri Seymour,...