Miss Mallard and Willard are in Paris to be part of the audience as a great performer brings back her grandmother's dances and sparkly costumes in a brilliant new show. But the performance is short-lived when the notorious jewel thief, The Red Carnation, swoops in and ducknaps the main performer. But what would a jewel thief want with an old costume? Miss Mallard discovers the answer after she stages the switcheroo of a lifetime to catch the villains.

培特的祖母曾经是全法国巴黎名气最响的杰出的歌手和舞蹈家。劳汀穿着祖母当年的演出服表演的时候，忽然被绑架了。她的化妆间也被翻得乱七八糟。维乐从歹徒手中救下了劳汀，并且发现绑匪是一个叫“红色康乃馨”的珠宝大盗。梅小姐很快意识到“红色康乃馨”绑架劳汀的目的一定与劳汀祖母的演出服有关。当年—位印度邦主曾送了许多名贵的珠宝给劳汀的祖母。聪明的祖母把这些珠宝都缝在了那件演出服上。可劳汀演出时穿的那件是仿制品，真正的那件还在里昂火车站。“红色康乃馨”不得到那些珠宝决不会死心。梅小姐设下陷阱，让珠宝大盗疲于奔命，最终在警察的面前露出了本来面目。劳汀和她的助理玛丽被维乐的勇敢打动，给维乐的巴黎之行留下—段浪漫的回忆。