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.
妻子的死给电视台王牌主播霍华德（彼得·芬奇 Peter Finch 饰）带来了沉重的打击，使他陷入痛苦和悲伤中无法自拔。电视台决定解雇已经无心工作的霍华德，霍华德的老朋友麦克斯（威廉·霍尔登 William Holden 饰）成为了传达这一噩耗的不二人选。得知自己即将被 解雇，为电视台做牛做马多年的霍华德十分愤怒，在第二天的节目上，他竟然向观众们预…
