Initially, I had reservations about the concept presented here, but the performances, particularly from Marion Cotillard and a group of actors who seemed genuinely comfortable on screen, ultimately made it work quite well. The story revolves around a situation at her job where management has given employees an ultimatum: accept a €1,000 bonus or allow "Sandra" to retain her position. Predictably, she’s lost the initial vote, but when she finds out that a coworker was spreading negative information about her, she persuades another employee, “Dumont,” to permit a second ballot. Following this, she and her husband, "Manu," find themselves in a frantic effort to convince their colleagues that saving her job is worthwhile. The film’s narrative strongly focuses on Sandra's experience, so we are privy to the emotional toll it takes on her and her family. She needs her employment – for financial reasons, certainly, but also for her own mental well-being. We mostly see the other employees in short snippets as she attempts to persuade them. I didn’t find that unfolding aspect entirely satisfying, though there's no question about the powerful performance delivered by Cotillard portraying a progressively exasperated "Sandra," who becomes increasingly emotionally exhausted as the weekend progresses. The script and direction are strong and create an opportunity for viewers to consider how they might react in similar situations, either as coworkers or someone grappling with the psychological challenges of this kind of dilemma.

Source on TMDB