A pathologist, Dr. Warren Chapin (played by Vincent Price), discovers that the tingling of the spine in states of extreme fear is due to the growth of a tingler—a spinal parasite which can kill the host unless it is destroyed by screaming.“张总我来晚了，还请张总千万不要介意！”周定雄来到张小飞面前，语气十分客气的说道，而此时躺在地上的周伟也终于听到了自己父亲的声音，挣扎着爬到了周定雄的身边。