安东尼奥·马格赫特的第一部也是最受争议的恐怖电影作品。一个年轻人和朋友打赌，独自前往一个闹鬼的城堡过夜，途中邂逅并爱上了一个美丽的女鬼，随后却陷入了一群鬼的阴谋之中。马格赫特也是为意大利恐怖电影贡献了无数杰出作品的人物，这本片中，他充分利用黑白摄影以及城堡自身的幽闭制造恐惧感，并赋于影片更多的暴力、色情场景，远远超出了当时的电影观众的接受能力。

An unseen killer is murdering people that know too much in connection with an earlier unsolved case of a missing girl. I like the giallo genre, but this one by Tonino Valerii is laid back to the point of being tedious, a few gory set-pieces can't even help this film. The ending is horribly cliché and the film has one scene that featured a fully naked prepubescent girl that repulsed me. There is NO reason to put a nude eleven or twelve year-old in any film. EVER!

A middle-aged plumber quits his job and questions his life after seeing somebody his own age suddenly die from a heart attack on his way to work.