A group of graduate students conduct a sleep deprivation study in the 80s, but something goes terribly wrong with a test subject. After their department is shut down, the team moves 前锋, 期待 in secret - only this time on themselves.
In the film, a young genius accidentally invents a device that amplifies the paranormal activity within his family’s house, possibly bringing back the spirits of loved ones, and unleashing things far worse.
