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.

Peter Carson's subversive investigation uncovers Dr Jenner's dark past, including details of the probably illegal, certainly unethical genetic engineering experiment, he initiated a decade ago.

"It's not over yet," vows Carson. But later, in a post office sorting room, we see Hennessey confiscate copies of an incriminating video that had been mailed to the press.