30 June 1990, in Rome Marie Christine is awakening to bring her two children, Pietro and Paolo, to her husband for the weekend. The Football World Cup takes place in Italy and Rome is flooded by supporters; the traffic is chaotic and the French Marie Christine, who works as a translator, finds a bag. The bag belongs to Miriam who has to leave the next day. Marie Christine decides to find her to return her passport but one Giuliano Ferrini tries to keep her from doing it. So Marie Christine finds herself all through a hot Roman night in a city she doesn't know, among people she never had dreamt could live in the same city where she lived in.