Annie is the resident sceptic on a radio program devoted to UFO sightings, alien theories and unexplained phenomena of suspected extra-terrestrial origin. She doesn't believe a word. But when strange sounds begin coming from the sky around the world, Annie's boss and co-workers begin acting strange. She blacks out, loses time, and the love-interest neighbour next door goes from sweet to creepy. Annie suspects something is in the air. Or is it the water? Annie must fight for her life to discover a truth impossible for her to believe.