From the files of Scotland Yard's "Black Museum" (open only to police officers) come true crime stories of some of the most infamous murder cases of the 19th and 20th centuries—the Lambeth Poisoner, "baby farmer" Amelia Elizabeth Dyer, the Gentleman Vampire of Bournemouth, the Brides in the Bath Murders, the Rillington Place murders and many others. Along the way, investigators pass a number of crime-solving milestones, included the first use of fingerprint technology, the early use of photography and the first time "The Yard" enlisted the press to help hunt down a killer.