伊森在父母车祸生亡后背负极大的罪恶感,他毅然决然放弃了麻省理工学院的大好前途,为了他的妹妹转而投入一项极具革命性的新实验。伊森在过程中逐渐发现这项实验的无穷潜力,甚至萌生想将死去的父母带回人间的念头,然而结果却超乎他的预期……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.