The members of the Popinot family of French champagne tycoons suspect that the widowed head of the family Charles Popinot is keeping a mistress in Rome and generally living a wild life. Unbeknownst to them he has happily re-married and had a son with a much younger woman. She believes he is twenty years younger than he really is and is shocked when his relatives including his mother, grown-up sons and granddaughter arrive in Italy.
The port city of Bristol, England, in the 1800s is home to Java Head, a sailing ship line company. The owner has two sons. One, a handsome seafarer, is in love with a local girl, but cannot marry her due to a long-running feud between their fathers. After a lengthy voyage, he returns with a very exotic, noble Chinese wife, which scandalizes the conservative town. His other son, a "landlubber", seeks to convert to steamships, to the disgust of his father. Even worse, he is secretly dealing in contraband.
살인 사건이 발생하는 한 마을에 여배우 다이아나 밸링이 용의자로 지목된다. 그녀가 사체 바로 옆에서 부지깽이를 들고 있었던 것. 프로듀서 디렉터인 허버트 마샬은 살인재판의 배심원으로 위촉된다. 재판이 끝나고 배심원들이 모여 그녀의 죄를 논하는 과정에서 투표는 무죄가 3표, 유죄 7표로 결론이 난다. 그러나 그는 다이아나의 결백을 믿고살인범을 찾아 나서는데.