After a romantic weekend gets sidetracked, a young couple find themselves at an outdated hotel, caught up in murderous death-loops, and as bait for a demon.

一位女歌手在目睹其一位歌迷诡异自尽后，身边开始出现各种奇怪的微笑现象，其歌迷纷纷精神失常，开始疯狂地微笑，对女歌手穷追不舍。