From what I understand the film is about people who are stuck somewhere... that's it. Would love to give you more info but that's all I found and I also don't care. Whatever happened to great films like Memento Mori (1999), A Tale of Two Sisters (2003), Epitaph (2007) and Possessed (2009)? Sigh...
Check out the teaser below and feel free to disagree with me!