The Sign of Four: Sherlock Holmes' Greatest Case

A young woman turns to Holmes for protection when she's menaced by an escaped killer seeking missing treasure. However, when the woman is kidnapped, Holmes and Watson must penetrate the city's criminal underworld to find her.

• Director: Graham Cutts
• Cast: Arthur Wontner, Isla Bevan, Ian Hunter, Graham Soutten, Herbert Lomas, Gilbert Davis, Margaret Yarde, Roy Emerton