F.M.是一个颓废青年，某日他发现某种迷幻的音乐会使人们变得烦躁不安，他怀疑政府正借此对民众进行洗脑。。。

An international group of film students finds a disturbing video clip on the dark web which seems to contain poltergeist phenomena. Agreed that it's just what they need for their latest documentary project the group travels to the sanatorium shown in the video clip. Once there, they rig up their camera equipment and start to explore the possible ghost activities - until the true horror begins.