I liked the idea in this. Maybe it was a little boring. Acting was quite good actually. But the ending.. or the lack of it. This kind of ending is not brave or artistic. Its cowardess not to give some explanation. Maybe they got out only after everyone quit? I would habe been something: you have to stay as long, but not get money. Maybe it was a sick joke? Frustraring and very lame decision to leave ending open.