A middle-aged, slightly pudgy and earthy waitress finds herself wooed by a handsome marine animal trainer from a local theme park. Arlette (comedienne Josiane Balasko, France's answer to Roseanne) has no idea that she is the long-lost heir to the vast fortune of a dying business tycoon. Her new suitor Franck (Christophe Lambert), who is dangerously indebted to Las Vegas gamblers, is well-aware of her status and is being forced by the gamblers to court and marry her so they can later kill her and collect her inheritance. As this is a comedy, the story takes several humorous twists and turns, especially when Franck really does fall in love with the feisty Arlette and comes clean about the scheme. This leads Arlette and Franck to hatch their own plan for turning the tables on the crooks.