Bored with her mundane factory job, her nagging mother and her alcoholic father-in-law, Louise is captivated by a glamorous American couple who move to her industrial hometown in Northern France. The Roolands' home is an island of colour, good humour and easy living in drab 1950s Léopoldville, and soon Louise is working there as a maid. But once she is under her new employers' roof their model life starts to fall apart - painful secrets from their past emerge, cracks in their relationship appear and a dark obsessions begins to grow, which will end in murder...