Jean Devaivre made some estimable entertaining works,already mentioned by the precedent user ; let's be nice ,and let's pass over in silence his "Caroline Chéries " (the sequels,the latter interesting,because of Brigitte Bardot's presence) and "le roi des resquilleurs ".It's useful,when you are in dire straits and blackmailed to make you steal pivotal plans for the national defence , to have a twin brother who is a superintendent ,closer to James Bond than to Commissaire Maigret ; the plot is muddled and confused ,but it does not matter when you deal with an action-packed movie,including a car-chase by night from the Champs Elysées to la Place De la Concorde,by night ,and a boat chase on the Seine where you can spot l'Île saint-Louis and Notre -Dame.Paul Meurisse is true to form, but he takes a back seat to essentially stage actor Louis Velle,who successfully created two different characters with his twins; and to servant Jean Tissier , who enjoys eavesdropping and to Roland Toutain , often cast as an aviator (see also "Rouletabille aviateur" and Renoir's masterpiece " la règle du jeu" ). Nicole Courcel provides the obligatory love interest.