安妮（托妮·科莱特 饰）和鲍勃（哈威·凯特尔 饰）是一对富有且人脉广泛的美国夫妇。在为久经世故的国际朋友准备特别豪华的晚餐时，安妮发现到场只有13位客人，安妮惊惶失措，因为她坚信13是个非常不吉利的数字。不得已的情况下，安妮让她的忠实女仆玛丽亚（萝西·德·帕尔马 饰）伪装成一个神秘的西班牙贵妇人参加他们的晚餐。然而，在酒精的驱使下，玛丽亚意外地得到了一位英国艺术品经纪人（迈克尔·史麦利 饰）的青睐。本片讲述了安妮为扼杀他们正在萌芽的恋情而发生一系列啼笑皆非的事情。

　　From the Louis Hemon novel "M. Ripois and His Nemesis" about Andre Ripois, a philanderer in pursuit of love and riches from Paris to London. Andre is breaking up with his wife, Catherine, over his attentions to her best friend Patricia. While Catherine is out arranging the divorce, Andre, just to keep in practice, hits on the girl upstairs, Diana and then turns his attention back to Patricia, who he tricks into having dinner at his flat on the pretext that Catherine will be there. When he cannot make any progress with her via his usual tactics, he tries to arouse her pity be telling her of his past. In his early, impoverished days in London, he made love to his boss Anne but her dreadful cooking drove him away. Next came Norah who he picked up on a bus and took to his flat and told her about his make-believe inheritance, but she insisted on marriage first, which was not in his plans. Marcelle, a French woman living in Soho, put him on his feet with money, and he repaid her by stealing fifty pounds and running off. He met the wealthy Catherine at his flat where she came to be tutored in French lessons, and ended up marrying him. But, even at his wedding, he had eyes only for Patricia and, he tells her she is his one true love.

故事讲述怯懦又富有正义感的少女马丽娜获得“米可幻奇”的力量成为新手英雄“奇迹少女”，并在抗击罪恶中结识另外一位英雄“黑猫罗尔”。两人并肩作战一起共同成长并守护世界和平……