Heat Wave (2011)

In a sweltering distant suburb of Marseilles, Amelie works as a cashier in a local supermarket, toiling away the summer hours when she's unexpectedly visited by her lanky, dark-eyed boyfriend Luigi. At the same time, her overweight mom Anne heads to the city for a mysterious appointment, while an unknown old man, Georges, goes about his daily routine, which includes shopping for groceries and --for unknown reasons--loading his shotgun.