Matthew Boulton

A Scotland Yard detective tracks a saboteur posing as a small cinema owner, who plots to set off a bomb in London while his wife stays in the dark.

Las víctimas de una serie de asesinatos tienen en común un dedo cortado. Holmes sospecha de Moriarty, pero las pistas apuntan a una misteriosa mujer.

An elder lady hires a charming young man as a live-in companion, despite the suspicions of her niece that he may be a murderer.