The Adventure of the Speckled Band
Detective Sherlock Homes and his trusted assistant Dr. Watson investigate mysteries. Miss Helen Stoner comes to call regarding the mysterious death of her twin sister and fears she may be next. Holmes agrees to help. After an unannounced visit from Helen's menacing stepfather, Dr. Roylott, Holmes and Watson visit Roylott's decaying mansion and examine the room where Helen's sister died. While there, the duo make some surprising discoveries.