在18世纪法国，一部传奇般的神探之旅——解开神秘谜团之门，是基于实际历史人物神探维托改编的大片。该片花费超过15亿法郎的生产费用，并在西班牙电影节获得五项最高奖项的荣誉。当法国神探维托（杰拉尔·德帕迪约饰演）失踪时，传闻中他被一位穿着镜子面具的魔人所杀害。这个镜子面具 reputed to possess eerie powers that can drain human souls, it became a focal point in the string of mysterious murders that shook Paris. Young journalist Paul (Guillaume Canet) embarks on an investigation into the case and soon finds himself working with Vito's documentarian Nima and a mysterious woman. As they interview various witnesses, they discover that a series of "electrocution murders" have been taking place, with several nobles dying in bizarre electrocutions and witnesses who had previously been interviewed meeting untimely deaths by strangulation. Paul also uncovers links between these incidents and the sudden disappearances of numerous virgins in the city, sending the story spiraling into a thrilling climax. Each clue holds the potential to change the course of events, but ultimately the key lies with Vito himself...
故事背景是1830年的七月革命，各种无关的时代细节有点多，所以猜测可能是文学作品改编的，查了一下发现电影背后有个Eugène François Vidocq（男主原型），他被称为世上第一位私人侦探，有回忆录传世，为刑侦学引入了很多新概念。导演是个搞视觉特效的，早期代表作就是《黑店狂想曲》，这俩片子还挺像的，油腻又塞满了东西的布景、倾斜的人脸大特写，炼狱一样压抑不祥的城市配色，这片的合成画面不知为什么，好像特意做出了一种简陋感，人物和背景融合的不好，全片色调也不统一，一
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