Lestrade posed Sherlock Holmes and John Watson a complicated case. Ricoletti Emelia, a troubled young girl, the crazy: started shooting randomly at passers by before committing suicide. Before the evening, Emelia shot her husband and disappeared in the fog. A question does not give peace Sherlock: Emelia how he managed to survive? Arriving at the morgue, Dr. Hooper is informed by the woman who took his life, the woman who killed Mr. Ricoletti was identified as Emelia. Sherlock loses interest in this case. But when the bride makes a re-appearance a few months later and commit another crime, Sherlock is determined to unravel the mystery at all costs.