The movie is a prequel of the original and the events start a couple of months before Micah's death in the first film. The rest is for you to watch, as I hate to be the spoiler! In fact, my reviews are short because I believe in encouraging the reader to see the film rather than telling him the story.
The cast has acted well with Molly spicing up the screen. The rest have given good performances, considering all they had to do was react to the special effects. I especially liked the dog, though, since it was the only one concerned for the child.
Nothing special but it is a scary one especially when seen in a dark room. Certainly worth a watch, but no compulsions.