Synopsis

A connection to a 16th century murder seems to confirm that someone is killing witches in Whitechapel, but the investigation is impeded when a link to present-day espionage attracts the attention of the security services. Chandler is on the case, only for it to appear that there may be a malign influence at the very heart of the team. The station pulsates with unexplained phenomena, and even Miles starts to ask questions. Is anywhere truly safe, and who or what is behind the evil that seems to be surfacing all around?, A new detective inspector (Rupert Penry-Jones) investigates what looks to be an open-and-shut case involving the murder of a woman in London's East End, but things get complicated when the killing appears to be similar to one credited to Jack the Ripper more than 100 years earlier.