Katherine Schofield

Frank Ross returns from an eight-year prison sentence for a robbery that was thwarted because somebody 'grassed' the gang. Nobody knows who put the finger on him, but Ross is determined to find out and seeks revenge on those who betrayed him. Little by little, Ross pieces together the trail that leads to a dramatic conclusion.

A space shuttle mission investigating Halley's Comet brings back a malevolent race of space vampires who transform most of London's population into zombies. The only survivor of the expedition and British authorities attempt to capture a mysterious but beautiful alien woman who appears responsible.