Living along the French Riviera, retired jewel thief John Robie (Cary Grant) gets pulled back into the crime game. But this time, he's on the other side of the fence, trying to entrap a copycat criminal who is using his old style to throw the police off track. When Robie meets stunning heiress Francie Stevens (Grace Kelly), he hatches a plot using her mother's jewels to corner his nemesis.