“Moderate and songlike”—a musical tempo, but also an apt descriptor of this moody, deliberate drama co-scripted by Duras from her novel. Jeanne Moreau won Best Actress at Cannes for her haunting portrayal of a wife and mother whose husband is the chief employer of their steel town near Bordeaux. Her life consists of little more than shuttling their son to piano lessons, until one day, mid-sonata, she hears a scream. Before long she’s conducting a murder investigation with one of her husband’s workers (Jean-Paul Belmondo), unleashing her own morbid impulses and perhaps a private death wish. Theater giant Peter Brook’s restrained direction casts rare moments of intensity in relief, and Armand Thirard’s crisp cinematography conveys the desolation of life in a windswept town where “summer never comes.”