Fifty Shades of Sherlock Holmes

Late one dark evening, a mysterious woman arrives at 221 B Baker Street to solicit the help of Sherlock Holmes and his assistant Watson. She tells them a tale of debauchery such as never appeared in any tale of the Great Detective. Soon, Holmes is busily untangling the web of deceit spun by a masked man known only as the Gatekeeper...in this, The Case of the Defiled Countess.