Royal Rife works out of a San Diego laboratory in the 1930s, building microscopes powerful enough, he claims, to see viruses and to identify a frequency that destroys them, including the cancer-causing organism he says he isolated in 1934. Filmmaker Shawn Montgomery assembles Rife's story from archival footage, laboratory photographs, research papers, and audio of Rife himself, tracing a rapid rise among a small circle of doctors who reportedly treated patients with his device, followed by a collapse in which his lab is dismantled and his name erased from mainstream medical history. The film lays much of that collapse at the door of the American Medical Association, arguing that Rife's cure threatened pharmaceutical profits and was suppressed rather than disproven. It presents this case from Rife's side and the side of his supporters, with little space given to the medical establishment's rebuttal, so the frequency-cure claims should be understood as the film's argument rather than settled science. The result is a portrait of one man's work and the industry the film says destroyed it.