Captain Donald King is sent to India to carry out a secret mission while the Black Watch, his regiment, leaves for France at the outbreak of the First World War.

Playboy Larry Blendon introduces his grandmother Stella Blendon to his fiancée, radio singer Virginia Berneaux. Despite Larry's record of broken romances and divorces, Virginia decides she will marry him. Virginia is slain that night and Blandon telephones his friend, Philo Vance, to help find the killer.

A stage-actress mother and her daughter in a battle-of-wills in a "don't do this, daughter" and "don't do that, daughter" story of youthful folly and over-zealous parental devotion.

A chorus girl is mistaken for a millionaire's girlfriend.

Tomson, a financial adviser, is called to the aid of the country of Sylvania by the Grand Duke Constantino, known as "Tino." Tomson refuses to aid Tino until the Duke's son Alexis is married. However, Alexis, a romantic, is not interested in the blue-blooded types that his father has selected for him. Instead he wants fate to intercede. Upon learning this, Tomson plans a wife-hunting trip to Paris, "the beauty mart of the world."

Harvey Manning is placed on trial for the murder of Jack Winfield, his closest friend, whose body was found in the Manning home. During the trial, the prosecuting and the defense attorneys put forward sharply different versions of the character of Manning and his wife, Viola, and of the events leading up to the murder. The jury returns a verdict of guilty, but a young girl then comes forward and confesses that she killed Winfield for having wronged her.

When a woman accidentally kills her detested husband, a selfless young man takes the blame and goes to prison. Complications ensue when he is provisionally released.

Kalu and Tuila are two South Pacific islanders who are getting married. Invited to their wedding are several tourists who have recently arrived aboard a yacht. During the wedding Kalu sings a "Forbidden Melody", which is a song that a young man sings only once in his life, on the day of his wedding. However, he is enticed by Peggy, a nightclub performer who arrived on the yacht, into an illicit affair, eventually leaving with the tourists when their yacht departs. One of the other tourists is a nightclub owner, who offers Kalu a job back in the states.