1. The Adventure of the Empty House - Watson receives the shock of his life on seeing a familiar face, coinciding with the seemingly motiveless murder of one Ronald Adair. 2. The Adventure of the Devil's Foot - A Cornish holiday ends with a murder investigation for our intrepid duo when a woman is found dead besides her two insane singing and laughing brothers . 3. The Adventure of the Abbey Grange - An early morning awakening leads to an investigation at a grand house, where a suspected bungled robbery has left more than a few rifled drawers behind.