Tragedy befalls the Carter family following an eventful visit from a Russian prince and a scandalous blackmail letter. The murder of Wally Carter generates a bewildering mystery - how does one shoot a man crossing a narrow bridge without being near the murder weapon when it is fired?

Tragedy befalls the Carter family following an eventful visit from a Russian prince and a scandalous blackmail letter. The murder of Wally Carter generates a bewildering mystery - how does one shoot a man crossing a narrow bridge without being near the murder weapon when it is fired?