Jerry Fletcher, a taxi driver in New York, is obsessed with conspiracy theories. He constantly talks about the hidden rulers of the country and assassins roaming the streets. One day, he becomes convinced that Alice Sutton, a lawyer at the Department of Justice, needs to know the truth as well. Despite being kicked out of her office, they soon find themselves working together to save their lives. "Conspiracy Theory" is an intriguing and suspenseful film that delves into the world of paranoia and government cover-ups.