Out of money and options, 40-year-old Constance (Marina Foïs) abandons her life in Paris and returns to her suburban hometown in hopes of picking up where she left off. After she finds no real romance from her occasional lover (Benjamin Biolay), something finally snaps when she discovers that her old job as a real-estate agent has been given to a younger woman (Joséphine Japy). It soon becomes clear: Constance is dangerous, and will stop at nothing to get what she wants. Both a wild-ride thriller and a chilling character study, Faultless is driven by a riveting central performance: almost always onscreen, Foïs brings unexpected depth and poignant humanity to her portrayal of a coldly calculating sociopath.