"The Red-Headed League" and "The Speckled Band" are taken from Conan Doyle's "The Adventures of Sherlock Holmes". In these two stories we join Sherlock Holmes and Dr Watson in Victorian London as they try to solve two of their most mysterious and terrifying cases. What is the secret behind the Red-Headed League? And why does a young shop assistant spend so much time in a dark cellar? How can a young woman be murdered inside her bedroom after she locked the door one night? And why were her last words "the speckled band"?