Ruby Black and her husband inhabit a world of glamorous women, cocktail parties and now, murder! It's the "Roaring 20's" and the Blacks are invited to a party by their friend Sir Robert. Little do they know that later on that night, a young woman will be mercilessly stabbed through the heart. But her murder was a mistake! The killer intended to take a different life that night. How did they make such a terrible error? And will Ruby solve the case in time to stop them from succeeding in their next attempt?
Follow Ruby and her husband through the twists and turns of their fraught investigation. Can she convince the police to help her? Or will she have to give away her biggest secret? The identity of the reclusive Edward Leyton ...
