Fleeing the corporate world, a safecracker named Fred (Christopher Lambert) decides to start a new life in the tunnels of the Paris Metro. Once underground, Fred meets a gang of eccentrics who call the subway home. Together, they form a rock band. Meanwhile, Fred is simultaneously seducing and blackmailing the wife (Isabelle Adjani) of his former boss -- the man whose safe he just robbed. Soon, Fred is trying to outrun both sides of the law.