The nefarious aspects of MK-Ultra at the hands of the CIA have been well documented. But far less talked-about is the UK arm of this far-reaching programme of mind control and mass social monitoring.

Guesting to fill in some gaps is Cathi Morgan, a veteran hippie and festival-goer, who suspects she may have been subject to some early programming herself. More recently, she has turned to researching possible links between the UK's free party scene and LSD, population control, and surveillance at the hands of agencies like MI6 and the Tavistock Institute.