One of Scotland's most notorious serial killers, scripture quoting Bible John, raped and murdered three women in the late 1960s after meeting them in Glasgow's Barrowland Ballroom. Having never been caught, speculation has continued to the present day as to the killer's identity and whether more recent rapes and murders can be attributed to the same man. Paul Harrison, a former police officer and one of the first in the UK to interact with the FBI on psychological criminal profiling, has been fascinated by the case for many years. In Dancing with the Devil he leads us on his voyage of discovery as he undertakes his own investigations into the crimes. The author relates his journey of over 30 years involving interviews with the witnesses, discussions with the police officers involved and meetings with a number of suspicious characters and combines his findings, together with his own expert analysis of the evidence, to draw conclusions as to the identity of the killer, Bible John.