Rome. A solo bank and jewelry robber always loses a tail riding a different maxi scooter every time. He’s the talk of the town, but the Police commissioner called on the case doesn’t know which way to turn. He asks for help from a Parisian friend known as the French, notorious for having solved apparently impossible cases, who understands that the brain behind those robberies is a blue eyed, ordinary woman beyond suspicion: her name is Valeria and she’s a math genius who knows roman traffic like the back of her hand. By robbing, she wants to prove her worth. Fascinated by her, the French will play a kind of game of chess with her, until he’ll be forced to give her an ultimatum: tomorrow I’ll have you arrested…