On his arrival in the sleepy Yorkshire town nearest the Jenner Clinic, the fiendish Government official, Hennessey, orders all police out of the area, and calls up an army of khaki-clad 'specialists' who throw a security web around the site. Highly placed and powerful, Hennessey conducts a cover-up; mutilated victims disappear en route to the mortuary; the press are officially gagged by a 'D' notice; and the regular police's mass-murder inquiry is abruptly cancelled without any explanation to the detective in charge.