From NetFlix:

Not to be confused with the tale by Ernest Hemingway, this unsettling drama recounts the violent criminal assault and robbery committed against a middle-aged couple, and their discovery that a person they knew orchestrated the attack.

Ignore the NetFlix description. This French film set in Marseille is ultimately a feel-good story in which optimism and kindness triumph. You can find the full plot in the Wikipedia article. If anything the film dramatizes the difficulty of life in Marseille, but actually in any area beset with unemployment, for the younger generation.

As a short version: the husband in the older couple is a loyal unionist who loses his job during a layoff which also effect a certain young employee. Whereas for the older man this layoff is not a tragedy (he owns his house, his wife works), the younger man has an irresponsible young mother (you will be shocked) and two school age younger brothers for whom he is responsible. Out of desperation that younger man robs and assaults the older man, his wife, and another older couple. Accidentally the older man discovers who the culprit is. As the film progresses the older man comes to understand the young man’s difficulties. Finally I will tell you that the culprit is sentenced to 15 years (which will mean 2 or 3 years). Beyond that you have to discover for yourself the heartwarming developments.

French with English subtitles. DO NOT MISS!