A severely injured man and woman awake in an abandoned sanitarium only to discover that a sadistic caretaker holds the keys to their freedom and the horrific answers as to their real identity.
一位年轻女子寻求重新开始,但由于不明原因的失踪和新家中令人毛骨悚然的夜间回声,她的理智濒临崩溃。