Gregory Lioubov, alias Moses, a Russian secret services officer, is sent to Monaco to watch over a powerful businessman. For this mission, his team hires Alice, a top-notch financial expert who infiltrates the businessman's company. Eventually, Gregory begins suspecting that she might have switched teams. When he approaches her, all hell breaks loose.
But will audiences be able to take Dujardin seriously as a spy if they've seen OSS 117, or will they be waiting for the chicken gags and for him to sing Bambino in Arabic?