Overview: For the first time ever Most Haunted carry out a 4 night live investigation investigating London and Jack The Ripper, it is also the last time for Derek Acorah on Most Haunted. For the fourth and final night at Halloween, night 4 dated 31/10/2005, Most Haunted investigate 2 locations The Blind Beggar pub in Whitechapel, and a warehouse further down at Whitechapel.