Inès, a model employee in a cleaning business, is unrecognized and unpaid. Under the influence of trainee Mélody, she seeks a raise from her boss, Patrick, but the situation escalates, leading to a criminal incident.

Inès (45) may have behaved like a model employee in her business selling cleaning products, but she was never recognized or paid properly. Under the blasé gaze of Mélody, the young trainee, she decides to ask Patrick, her boss, for her first raise. But the situation gets out of hand, Mélody tries to intercede; Patrick ends up with a broken skull. The accident looks like a crime. What can be done? What Ines knows how to do best: clean up.