In this sci-fi chiller, a young woman's peace is shattered when she begins hearing loud screams in her head. They are the agonized wailings of an astronaut deliberately marooned upon the moon by a double-crossing experimenter. Soon the woman becomes possessed by the astronaut.

Metello struggles to escape from the poverty that led to the premature death of his parents, and that is the lot of the working class in northern Italy during the second half of the 19th century. Metello fights his way out from his condition through hard work, a determined will to resist oppression inherited from his father, but also by taking advantage of his good looks when dealing with women. Metello progressively assumes an important role in the organization of an emerging workers movement, and attempts to conciliate his risky political activities with his private life.

著名作家伯纳德去了一个靠近湖泊的小镇，在淡季的冬天度假。他入住了一个由恩里科和他的女儿Irma经营的老旅馆，期望能够见到女仆Tilde，他上次访问该镇时曾经爱慕过她。然而，他发现Tilde已经自杀身亡，当他遇到当地摄影师时，伯纳德得知Tilde怀孕了。他变得着迷于找出她是否真的自杀以及发生了什么事情。当恩里科的儿子Mario和他的妻子Adriana到达旅馆时，伯纳德开始幻想Tilde的命运。

在罗马的一次上流社会的聚会以后，发生了一件伤害袭击事件。伤者幸免于难。记者安德列被派去调查内情。此后，每逢星期二总是有谋杀案发生！在每一个犯罪现场，总会留下一只带有被害人被切下的一个手指的手套。在第四次谋杀案之后,安德列认为他已经取得案件的进展，但是这一次他自己也成了犯罪嫌疑人！而且他所爱的人也处在危险之中......在第5次谋杀案发生时，安德烈终于把戴面具的凶手甩出阳台，当他撕开凶手面具时，竟发现那个凶手居然是......