This one is proof that you don't need a big budget to make a quality disturbing film.
The atmospheric chill is effective in rendering dread. The cinematography is also rather beautiful.
The lighting is good, and one can see that it does not rely on artificially muted illumination to create the ambiance. The audience can often see the whole background of most scenes due to effective light work.
The quality of the cast is unfortunately quite inconsistent, with some actors being so movingly embedded in the script in one scene and then falter in the next. The younger actors could be forgiven for lack of experience but the more decorated ones may want to see it for themselves the granular lack of coherence in their micro expressions.
The story itself too can benefit from some clarity. The mysterious woman at the end really struggles with trying to sound prophetic with her riddles, thanks to this incorrigible need to impart some religious wisdom, which is a typical affliction besetting the sanctimonious Malaysian horrorscape.