Electromagnetic frequency is the invisible backdrop of modern life, and this film traces how quickly that backdrop changed. In the mid-1980s, fewer than 3% of people in most countries owned a cell phone; the film counts up from there to a world blanketed in Wi-Fi routers, cell towers, and smart meters, and asks what that saturation is doing to human biology. Scientists and researchers walk through decades of studies on radiofrequency exposure, some alarming and some inconclusive, alongside interviews about how telecom and tech industries have responded to warnings about health effects. The film also digs into older history, revisiting Nikola Tesla's early wireless experiments and the long, quieter debate over electromagnetic sensitivity that has run alongside the rollout of every new wireless standard. Archival clips of consumer electronics ads sit next to lab footage and expert testimony, building a case that the safety question was never fully settled before the technology became unavoidable. It ends less with an answer than with an inventory of what nobody has proven safe.