本片改編自民間傳說，幾個世紀以來，在不同的文化背景下，父母都會警告他們的孩子要小心傳說中的Bagman。Bagman會把無辜的孩子抓走，塞進那骯臟腐爛的袋子里，再也沒法回到父母身邊。Patrick McKee小時候曾逃過此劫，但這給他的生活留下了永久的創傷。現在，Bagman又回來了，威脅著他妻子Karina和兒子Jake的安全。

　　17歲的女孩Gretchen（亨特·莎弗 Hunter Schafer 飾）被迫與家人一起搬到一個度假勝地，而那里并不像看上去的那樣平靜。

Four friends wanted to get away from it all for a birthday celebration in a remote country house, but when a mysterious injured man turns up on their doorstep telling tales of a city ravaged by a mysterious epidemic and the looters who have pursued him, the friends rally to help. As the night progresses, it becomes clear that all is not as it seems, plunging the friends into a battle for survival that challenges their deepest fears.

Claudio Nervi, an eclectic director, and Lucia Neve, a disillusioned producer, are looking for a new actress who could help them with their latest feature film, a project that is undoubtedly adrift. During a meeting with one of the most promising candidates, Stella, the girl will reveal them that the script of the movie is pretty similar to a story she knows well: the story of how she died.