I'm not a fan of this. As seen with so many of the Japanese horror movies (Ring, Grudge, etc...), another culture's view of horror is often darker and more monotonous than American's like. They're not flashy and not "jump out at you" scary. They leave the plot to speak for itself and use tension and visuals for the horror.
Let the right one in is the same way. i.e.Spoiler: