影片讲述了哈维无意中发现了多年前连环杀手十二宫自拍的杀人录像，他联系好友决定报警并平分十万美金的悬赏，不料当夜杀手便将他们盯上，一场屠杀即将开始。
A writer who studies the paranormal believes that low frequency tactile sound is the cause for reported ghost sightings in an abandoned subway station. In an attempt to debunk the sightings, she breaks into the station to record evidence.
