A young and beautiful wife, happily married, is hiding two secrets of which she is determined her husband must never learn. The one man who discovers these secrets and threatens exposure meets with death under mysterious circumstances, and she is suspected of murder.
Then Gilbert Larose, Scotland Yard’s most famous detective, intervenes. But, although Larose becomes convinced of the innocence of a courageous woman and dramatically learns the truth about her past, even he is unable to unmask the killer. It is not until the very end of this most ingenious of Arthur Gask’s many thrillers that the identity of the murderer is revealed.