A female serial killer, the John Killer, stalks the conventions taking place in Los Angeles. Appearing as a prostitute, she follows her victims up to their hotel room where she brutally stabs them. As the time period between the killings gets shorter and shorter, Strike Force is struggling to get a clue who the killer is and where she will strike next. But then the Strike Force team learns that the killer has chosen Sergeant Mark Osborne to be her prime target. Will the team be able to stop the John Killer before it's too late for Mark?
—Jasper P. Morgan