When actress Diana Baring is found in a daze beside her colleague’s murdered body, all evidence points to her guilt. During the trial, juror Sir John Menier doubts the verdict, but yields to pressure. Haunted by remorse, he launches his own investigation.

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.

Jewel thieves kill a rich widow and frame a fake medium.

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.