The Sign of Four
- Episode aired Dec 16, 1968
- TV-PG
- 50m
When a woman receives a series of valuable pearls from an unknown party after the disappearance of her father, Sherlock Holmes is hired to investigate.When a woman receives a series of valuable pearls from an unknown party after the disappearance of her father, Sherlock Holmes is hired to investigate.When a woman receives a series of valuable pearls from an unknown party after the disappearance of her father, Sherlock Holmes is hired to investigate.