Professor Wassermann is asked by industry magnate Morgan Hunnicut to lead an expedition to study the giant Yeti creature found frozen in a large ice block on Newfoundland's coast. The professor does not know that Hunnicut intends to use the prehistoric creature as a trademark of its multinational industrial group. A very big mistake.

保罗·卡瓦拉启用年轻的普拉西多和美丽的法国姑娘科琳娜制作的这部Giallo片，既诙谐又严肃。故事的场景虽是在米兰，而影片中却充斥着西西里口音的意大利方言，意在反映20世纪的60或70年代意大利中心城市的发展与人口流动的关系，以及资本主义社会背景、政治历史的混乱。