Mary's ex-employer Mrs. Cecil Forrester comes to her for help after being blackmailed for thousands by the notorious Charles Augustus Milverton. Mary has to find something that will prevent Mrs. Cecil Forrester's secret from being revealed. Written by
Did You Know?
This is the first episode in which Holmes and Watson make only cameo appearances. Mary Morstan is given much more scope in this, as the set-up of the plot was very personal to her. See more