Block, the star journalist at the Esquire-esque Know Magazine, suspects Novak to be a fraud and quickly plans to write a damning exposé on the author to prove that all women, despite what they say, want love. Posing undercover as the airheaded astronaut Zip Martin, Block seduces the now world-famous Novak; what follows is a delightfully deranged game of cat and mouse where, naturally, our leading nemeses fall for each other.