Dr. Richard Strand, a brilliant psychiatrist with a mysterious past, teams with the obsessed, relentless scientist Alex Regan to debunk paranormal cases of hauntings, possessions, disappearances, and sinister legends - the infamous black tapes. But as Strand and Regan unravel the secrets of these events, they uncover a hidden occult world behind our own and must unravel a centuries-old apocalyptic conspiracy.