Fate brings together two people with seemingly nothing in common in this French romantic comedy. Helene (Carole Bouquet) is a single mother living in an upscale apartment complex in Paris with her teenage son Jeremy (Jean Senejoux). Helene is a successful author and a bit of a control freak who lives a carefully ordered existence. However, the same can't be said for her new next-door neighbor Valentin (Marc Lavoine), an aging slacker has lost both his job and his flat and will be spending the next few months in his uncle's spare home in Paris. Helene is more than a little appalled with Valentin and his lack of ambition and fashion sense, but her cat keeps finding its way into his apartment, and they can't seem to avoid one another. Valentin also strikes up a friendship with Jeremy, who offers the sort of male role model that's been missing in his life. Despite her initial annoyance with Valentin, Helene begins to warm to her new neighbor, but can love stand a chance with this mismatched pair?