Safecracker Lambert hides in the Parisian Métro from a wealthy businessman's wife (Adjani), with whom he has fallen in love; from her husband's thugs; and from the Métro police. He becomes part of a strange netherworld of eccentric social misfits, all living outside the law. Setting the movie in this unfamiliar but realistic world is intriguing enough, and Besson handles the action with consummate mastery. But the punk-chic style only accentuates the film's emptiness. That said, Adjani once again proves herself not only one of the most versatile actresses in European cinema, but also the most beautiful.