The film starts off moderately ok with a couple vacationing in Thailand who visit an ancient burial site where they are attacked by an evil spirit that follows them throughout the vacation. The film then spirals into a mess of cliches, bad acting, predictable jump scares, and a story that does not hold your attention. The story becomes dull and uninteresting within 15 minutes of the opening, an opening that crams too much information into it, making questions one would have about the story answered already, leaving the story nearly non-existent.
The jump scares are almost all the same. Girl is alone, ghost suddenly appears, girl freaks out. It may work the first few times, but you end up knowing what the scare is going to be before it happens. While the ghost from a distance could be considered by some as scary, up close it is not. The make-up job on the ghost is so poorly done, it renders the tensions useless and takes you out of the moment. The writing is also painfully dull, including characters with barely one dimension as well as conversations that leave you waiting for it to be over so the next scare will come.
In short, if you are a horror veteran, skip it. If not and you want some cheap scares, go for it.