Pernicious follows three college aged American girls on a summer trip to Thailand. When they arrive, they discover an ancient golden statue of a small girl in the house they're staying in. Their trip takes a turn for the worse after they uncover the statue, unleashing an evil spirit housed within. As the body count rises, the mystery deepens as they attempt to figure out why the spirit is bound to the statue and the reasons behind it's bloody desire for revenge.
Effects wise there was your standard practical/cg mixture. Thankfully most of the blood and gore was of the practical type, while the cg was left mostly to animating the statue. The practical stuff was great, the cg was probably serviceable at best. The budget for this movie went into so many things, practical effects, camera shots, location, etc., that I am more than forgiving if what little cgi is in it isn't quite cutting edge. It looks fine, trust me.