Jerry Fletcher(Mel Gibson) is a New York taxi driver, and also a man in love with a woman named Alice Sutton(Julia Roberts)he observes from afar. She works for the government. Fletcher is an outspoken critic of that government. He has conspiracy theories for everything, from aliens to political assassinations. But soon, one of his theories finds itself to be accurate. But which one? Some dangerous people want him dead and the only person he trusts is that woman he loves but does not know.