The cover of the Sherlock Holmes DVD set, featuring the iconic detective and his trusty sidekick, Dr. John Watson. The title 'Sherlock Holmes: The Master Blackmailer' is prominently displayed in the center, with the tagline 'The Master Blackmailer' below it. The image shows the two characters in their classic attire, with Sherlock Holmes wearing a deerstalker cap and Dr. Watson in a bowler hat. The background is a blurred image of a Victorian-era street scene, adding to the period drama atmosphere of the series.