Dante arrives at the castle of the recently deceased Marquis Zanetti to sell a book which contains a prophecy that the death of nine members of the Zanetti family will reveal a hidden treasure.

In a futuristic society, an old man tells the legend of a strange medal to two children. In flashback, we learn that after a nuclear catastrophe, two teenagers were living in an artificial paradise, maintained by electronic means, and once decide to leave that shelter and escape using that same medal - a mini video-disc - in search of outer-space freedom.

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。