萬達納西（卡洛爾·隆巴德飾演），布魯克林來的一名女演員，為了土地和一個好萊塢工作室的電影演出合同，決定偽裝成來自瑞典的“奧爾加公主”，登上開往紐約的客輪的猛獁象。她跑進王曼特爾（弗萊德麥克默裡飾演），手風琴演奏樂隊的主唱——他過去曾有過犯罪記錄。他們都被羅伯特·達西（波特·海爾飾演）敲詐，之後羅伯特·達西被殺，他們成為兩對謀殺案的主要嫌疑人，他們必須在有五個警察和偵探的船上找到真正的兇手…… ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Wanda Nash (Carole Lombard), an actress from Brooklyn, decides to masquerade as "Princess Olga" from Sweden in order to land a film contract with a big Hollywood studio. On board the liner Mammoth bound for New York, she runs into King Mantell (Fred MacMurray), a concertina-playing band leader with a criminal record in his past. Both are blackmailed by Robert M. Darcy (Porter Hall), and after Darcy is killed, they become two of the prime suspects for the murder, and must find the real killer before the five police detectives traveling on the ship can pin it on them.