London. Today. After taking a group of bloodthirsty tourists on a macabre and visceral Jack The Ripper Murder Walk, tour guide and expert in Ripperology, Peter Draycott is approached by one of the group, writer Laura Turner who tells him that she has almost completed a book that will finally reveal the Rippers true identity. When he dismisses her book, Laura is suddenly and shockingly caught up in a chilling, blood-soaked climax.