Luc Besson's sophomore feature is a stylish urban odyssey which helped to consolidate Besson's reputation for unique, visually creative cinema. After stealing sensitive documents from a mob boss, Fred (Christopher Lambert) takes refuge in the Paris Metro. Whilst hiding in this labyrinthine and surreal world beneath the city, Fred attempts to blackmail the mob boss's wife, Helena (Isabelle Adjani), into exchanging money for the documents. As Fred's bond with Helena deepens and as his life interweaves with the denizens living in the shadows, the police and the mob close in from all angles...