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.
