Binaud would like to tell the story of his love for Claude, the slowest cashier in the world, but he is questioned by the police.
Police captain Déa Versini works with Jimmy. They are inseparable and have formed a perfect partnership on the streets. There is no case they can’t crack! But their relationship is shaken up by the arrival of a new lieutenant, Matthieu Belcourt. Is it possible for them to work as a trio? Unlikely… given that Jimmy is Déa’s imaginary friend!