暗室是由罗伊·威廉·尼尔  执导，波利斯·卡洛夫  玛丽安·马什  罗伯特·艾伦  等人主演的，于1935年上映，该恐怖片讲述的是：

Ignoring an ancient prophecy, evil brother Gregor seeks to maintain his feudal power on his his Tyrolean estate by murdering and impersonating his benevolent younger twin.