A jewel thief is at large on the Riviera, & all evidence points to retired cat burglar Cary Grant. Escaping the law, Grant heads to the Cote DAzur, where he is greeted with hostility by his old partners in crime. All of them had been pardoned due to their courageous activities in the wartime Resistance, & all are in danger of arrest thanks to this new crime wave. But Grant pleads innocence, & vows to find out whos been copying his distinctive style. With the reluctant aid of detective Jo