 Inspector Sergil is assigned the mission to protect the dictator of Santa Juanita during his stay in France and - it goes without saying -trouble begins at once, as of his journey in the fast train from Paris to Marseilles. A lot of opponents of all kinds are intent on liquidating the dictator and they do not particularly like to have Sergil in their way. When Bijou, the inspector s fiancée, accepts to serve as a bodyguard for the dictator, she is soon kidnapped and will not be released until Sergil tells them about their enemy s hiding place. Where the shoe pinches is that the dictator has disappeared and Sergil does not even know where he is.