I say that it is "meant" to be because the twists are kind of interesting but especially the last big reveal is just kind of dumb.
I'm going to be putting spoilers in here because I don't think you should waste your time watching this film. If you want to punish yourself be my guest.... but you should stop reading now if you intend to see a film that I can't imagine how it got a 6.2 on IMDB.
[source](http://cdn.funnyand.com/wp-content/uploads/2014/09/Spoiler-Alert-760x500.jpg)The movie starts out immediately annoying me as two attractive girls in their mid to late 20's are showcased as being the best cello players in the world (cellists?) They form a friendship and eventually end up making out and getting it on before going on a trip where one of the girls gets terribly ill and eventually has to cut her own arm off. Wait... what?
This sequence is gory and actually quite well-done as far as grossing out the audience is concerned, but leading up to that occurance is a series of ridiculous events such as these wealthy people going on a really shitty bus trip that no wealthy person would ever go on in the first place and then the driver refuses to allow them to use the bathroom and when one of them gets terribly ill, he refuses to divert course to a doctor.
I know that bus drivers can be a pretty uncaring bunch, but when someone is throwing up all over your bus, you maybe would pull over to let them relieve themselves. Plus, this is China they are in, not the Congo, doctors are never very far away.
[source](https://img.elcomercio.pe/files/article_content_ec_fotos/uploads/2019/05/30/5ceff30fcdc0a.jpeg)as it turns out the entire story has a twist where what was actually going on from the start was a revenge plan on the part of one of the girls to "save" the other girl from being abused by their mutual teacher. One way she was going to accomplish this was by having her cut her own hand off - which makes total sense. It seems to me that it would have been a whole lot easier to simply get the guy alone and kill him seeing as how that is what ends up happening anyway.
This is another one of those films that has a decent trailer and that is what inspired me to watch it in the first place. However, the completely impractical series of events that had even the tiniest thing been a little bit different, the whole plan wouldn't have worked.
Other than having a few gore moments (which are actually very nicely done) the film is a dud with lots and lots of boring filler with a smattering of action here and there.