从少管所逃出来的少年哈伊伯(罗伯特·考博 Roberto Cobo 饰)带领小孩子们欺负街市上卖艺的瞎眼老头儿(米格尔·因克兰Miguel Inclán 饰),抢他的钱,敲破了他的鼓。傍晚,一个没名字的乡下孩子“小眼睛”(Mário Ramírez 饰)被父亲遗弃在集市 ,孩子们中一个叫佩德罗的(阿尔方索·梅嘉 Alfonso Mejía 饰)同情他,带他到朋友家的牛棚过夜。佩德罗自己因成天与小混混们在一块儿,不找工作帮衬家里,被妈妈(伊斯特纳·英达 Estela Inda 饰)厌恶,也被赶出了家门。而哈伊伯惦着一年前与另一少年的过节,让佩德罗带着他找其寻仇。佩德罗想要脱离哈伊伯,也想重获母爱回家,可事情却没想象的那么简单……
本片获1951年戛纳电影节最佳影片提名,并获最佳导演奖。1953年,获英国电影电视协会最佳影片奖。。American psychologist John Holden arrives in London to participate in a symposium aiming to expose witchcraft and devil-worship as a fraud, with attention centered on a cult run by a Julian Karswell. Debarking his plane, Holden learns that the symposium leader, Henry Harrington, has suddenly died and he is now in charge. What only the audience knows is that Harrington was clearly killed by a demon, apparently summoned by Karswell to avenge his persecution. Despite both threatening and cajoling behavior by Karswell, Holden determines to proceed, though the only cult member willing to talk about his experiences is in a prison psychiatric ward, catatonic after allegedly killing yet another cult member. However, Harrington's niece, Joanna, believes, based on her uncle's notes, that Karswell may indeed have some satanic powers derived from an ancient tome in an obscure language which he has been able to translate, and attempts to warn the skeptic Holden. Karswell's mother also attempts to warn Holden off. However, the thing which begins to most get to Holden are the occasional, but mounting, sensory and mental disturbances he begins experiencing after an encounter with Karswell, and the discovery that, during this encounter, Karswell secretly slipped a slip of parchment with a curse in runic symbols on it into Holden's belongings, a parchment identical to one Harrington recorded having had passed to him in a similar manner shortly before his death... [N.B. Holden at no point stays at the Karswell estate].。