Paris, 2009. The true story of the scam of the century. Billions are going up in smoke on the new 'carbon quotas' market, invented to fight pollution. A gang of small-time crooks from Belleville partner with an upper-class trader to carry off an epic swindle.

Claire moves impulsively from NYC to Paris, where she nannies for the family from hell, battles wacky French bureaucrats, embarrasses herself in front of her Parisian crush and navigates a toxic relationship - among other faux pas.

Charles Senac, author of a single novel but crowned by the Prix Goncourt, is hated by the regulars of the bar-restaurant "Le Renard jaune" who regularly insult him. One morning he is found dead in his home. For inspector Giraud, it is clear that the culprit is among the customers of "Le Renard jaune".