本片是一部美国片，上映于2016-07-08，由Todd Verow导演，由Brad Hallowell/Nathan Johnson/Todd Verow主演。
剧情简介：Serial killer 'NO1KNOWS' managed to elude the police for years. In fact they didn't even know he existed until, by chance, his video and audio recordings were found. By examining the recordings police were able to solve a number of murders around the world - although many men featured in the recordings were never found and it is unclear how many other victims there were since most of the video and audio recordings were destroyed
外文名：Required Field
地区：美国
导演：Todd Verow
编剧：Todd Verow
演员：Brad Hallowell / Nathan Johnson / Todd Verow / Joe Wakeman / David J. White
